AU Core Implementation Guide
1.0.0-ballot - Ballot Australia flag

This page is part of the AU Core (v1.0.0-ballot: AU Core R1 Ballot 7) based on FHIR (HL7® FHIR® Standard) R4. . For a full list of available versions, see the Directory of published versions

Resource Profile: AUCoreMedicationRequest - Detailed Descriptions

Page standards status: Draft Maturity Level: 1

Definitions for the au-core-medicationrequest resource profile.

Guidance on how to interpret the contents of this table can be found here

0. MedicationRequest
2. MedicationRequest.status
Must Supporttrue
Obligations
    ObligationsActor
    SHALL:populate-if-knownAU Core Responder
    SHALL:no-errorAU Core Requester
    4. MedicationRequest.intent
    Must Supporttrue
    Obligations
      ObligationsActor
      SHALL:populate-if-knownAU Core Responder
      SHALL:no-errorAU Core Requester
      6. MedicationRequest.medication[x]
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Must Supporttrue
      Obligations
        ObligationsActor
        SHALL:populate-if-knownAU Core Responder
        SHALL:no-errorAU Core Requester
        SlicingThis element introduces a set of slices on MedicationRequest.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
        • type @ $this
        • 8. MedicationRequest.medication[x]:medicationCodeableConcept
          Slice NamemedicationCodeableConcept
          TypeCodeableConcept
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          10. MedicationRequest.medication[x]:medicationCodeableConcept.coding
          SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • pattern @ $this
          • 12. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs
            Slice Namepbs
            BindingThe codes SHALL be taken from PBS Item Codes
            (required to http://terminology.hl7.org.au/ValueSet/pbs-item)
            Must Supporttrue
            Obligations
              ObligationsActor
              SHALL:populate-if-knownAU Core Responder
              SHALL:no-errorAU Core Requester
              14. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt
              Slice Nameamt
              BindingThe codes SHALL be taken from Australian Medication .
              (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-medication-1)
              Must Supporttrue
              Obligations
                ObligationsActor
                SHALL:populate-if-knownAU Core Responder
                SHALL:no-errorAU Core Requester
                16. MedicationRequest.medication[x]:medicationReference
                Slice NamemedicationReference
                TypeReference(AU Core Medication)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Obligations
                  ObligationsActor
                  SHALL:populate-if-knownAU Core Responder
                  SHALL:no-errorAU Core Requester
                  18. MedicationRequest.subject
                  TypeReference(AU Core Patient)
                  Must Supporttrue
                  Obligations
                    ObligationsActor
                    SHALL:populate-if-knownAU Core Responder
                    SHALL:no-errorAU Core Requester
                    20. MedicationRequest.encounter
                    TypeReference(AU Core Encounter)
                    Must Supporttrue
                    Obligations
                      ObligationsActor
                      SHALL:populate-if-knownAU Core Responder
                      SHALL:no-errorAU Core Requester
                      22. MedicationRequest.authoredOn
                      Control1..?
                      This element is affected by the following invariants: au-core-medreq-03
                      Must Supporttrue
                      Obligations
                        ObligationsActor
                        SHALL:populate-if-knownAU Core Responder
                        SHALL:no-errorAU Core Requester
                        Invariantsau-core-medreq-03: Date shall be precise to the day or, if not available, the Data Absent Reason extension shall be present ((toString().length() >= 8) xor extension('http://hl7.org/fhir/StructureDefinition/data-absent-reason').exists())
                        24. MedicationRequest.requester
                        Control1..?
                        TypeReference(AU Core Practitioner, AU Core PractitionerRole, AU Core Organization, AU Core Patient, AU Base Related Person)
                        Must Supporttrue
                        Must Support TypesNo must-support rules about the choice of types/profiles
                        Obligations
                          ObligationsActor
                          SHALL:populate-if-knownAU Core Responder
                          SHALL:no-errorAU Core Requester
                          26. MedicationRequest.reasonCode
                          Must Supporttrue
                          Obligations
                            ObligationsActor
                            SHALL:populate-if-knownAU Core Responder
                            SHALL:no-errorAU Core Requester
                            28. MedicationRequest.reasonReference
                            TypeReference(AU Core Condition, Observation)
                            Must Supporttrue
                            Must Support TypesNo must-support rules about the choice of types/profiles
                            Obligations
                              ObligationsActor
                              SHALL:populate-if-knownAU Core Responder
                              SHALL:no-errorAU Core Requester
                              30. MedicationRequest.dosageInstruction
                              Must Supporttrue
                              Obligations
                                ObligationsActor
                                SHALL:populate-if-knownAU Core Responder
                                SHALL:no-errorAU Core Requester

                                Guidance on how to interpret the contents of this table can be found here

                                0. MedicationRequest
                                Definition

                                An order or request for both supply of the medication and the instructions for administration of the medication to a patient. The resource is called "MedicationRequest" rather than "MedicationPrescription" or "MedicationOrder" to generalize the use across inpatient and outpatient settings, including care plans, etc., and to harmonize with workflow patterns.

                                ShortA request for a medication for a patient in an Australian healthcare contextOrdering of medication for patient or group
                                Control0..*
                                Is Modifierfalse
                                Summaryfalse
                                Alternate NamesPrescription, Order
                                Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
                                dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
                                dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
                                dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
                                dom-6: A resource should have narrative for robust management (text.`div`.exists())
                                2. MedicationRequest.implicitRules
                                Definition

                                A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

                                ShortA set of rules under which this content was created
                                Comments

                                Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

                                Control0..1
                                Typeuri
                                Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                4. MedicationRequest.extension:subsidisedConcurrentSupply
                                Slice NamesubsidisedConcurrentSupply
                                Definition

                                The grounds which authorise a PBS or RPBS subsidy for the concurrent supply of a medication item specified in a prescription and all of its repeats.

                                ShortGrounds for concurrent supply of medication
                                Control0..1
                                This element is affected by the following invariants: ele-1
                                TypeExtension(Subsidised Concurrent Supply) (Extension Type: Coding)
                                Is Modifierfalse
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                6. MedicationRequest.modifierExtension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                ShortExtensions that cannot be ignored
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                                Summaryfalse
                                Requirements

                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                8. MedicationRequest.status
                                Definition

                                A code specifying the current state of the order. Generally, this will be active or completed state.

                                Shortactive | on-hold | cancelled | completed | entered-in-error | stopped | draft | unknown
                                Comments

                                This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

                                Control1..1
                                BindingThe codes SHALL be taken from medicationrequest Statushttp://hl7.org/fhir/ValueSet/medicationrequest-status|4.0.1
                                (required to http://hl7.org/fhir/ValueSet/medicationrequest-status|4.0.1)

                                A coded concept specifying the state of the prescribing event. Describes the lifecycle of the prescription.

                                Typecode
                                Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Must Supporttrue
                                Obligations
                                  ObligationsActor
                                  SHALL:populate-if-knownAU Core Responder
                                  SHALL:no-errorAU Core Requester
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  10. MedicationRequest.intent
                                  Definition

                                  Whether the request is a proposal, plan, or an original order.

                                  Shortproposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
                                  Comments

                                  It is expected that the type of requester will be restricted for different stages of a MedicationRequest. For example, Proposals can be created by a patient, relatedPerson, Practitioner or Device. Plans can be created by Practitioners, Patients, RelatedPersons and Devices. Original orders can be created by a Practitioner only.

                                  An instance-order is an instantiation of a request or order and may be used to populate Medication Administration Record.

                                  This element is labeled as a modifier because the intent alters when and how the resource is actually applicable.

                                  Control1..1
                                  BindingThe codes SHALL be taken from medicationRequest Intenthttp://hl7.org/fhir/ValueSet/medicationrequest-intent|4.0.1
                                  (required to http://hl7.org/fhir/ValueSet/medicationrequest-intent|4.0.1)

                                  The kind of medication order.

                                  Typecode
                                  Is Modifiertrue because This element changes the interpretation of all descriptive attributes. For example "the time the request is recommended to occur" vs. "the time the request is authorized to occur" or "who is recommended to perform the request" vs. "who is authorized to perform the request
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Must Supporttrue
                                  Obligations
                                    ObligationsActor
                                    SHALL:populate-if-knownAU Core Responder
                                    SHALL:no-errorAU Core Requester
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    12. MedicationRequest.doNotPerform
                                    Definition

                                    If true indicates that the provider is asking for the medication request not to occur.

                                    ShortTrue if request is prohibiting action
                                    Comments

                                    If do not perform is not specified, the request is a positive request e.g. "do perform".

                                    Control0..1
                                    Typeboolean
                                    Is Modifiertrue because This element is labeled as a modifier because this element negates the request to occur (ie, this is a request for the medication not to be ordered or prescribed, etc)
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    14. MedicationRequest.medication[x]
                                    Definition

                                    Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                    ShortMedication to be taken
                                    Comments

                                    If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                    Control1..1
                                    BindingFor example codes, see SNOMEDCTMedicationCodeshttp://hl7.org/fhir/ValueSet/medication-codes
                                    (example to http://hl7.org/fhir/ValueSet/medication-codes)

                                    A coded concept identifying substance or product that can be ordered.

                                    TypeChoice of: CodeableConcept, Reference(Medication)
                                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Must Support TypesNo must-support rules about the choice of types/profiles
                                    Obligations
                                      ObligationsActor
                                      SHALL:populate-if-knownAU Core Responder
                                      SHALL:no-errorAU Core Requester
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      SlicingThis element introduces a set of slices on MedicationRequest.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
                                      • type @ $this
                                      • 16. MedicationRequest.medication[x]:medicationCodeableConcept
                                        Slice NamemedicationCodeableConcept
                                        Definition

                                        Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                        ShortCoded Prescribed MedicationMedication to be taken
                                        Comments

                                        If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                        Control01..1
                                        BindingFor example codes, see SNOMEDCTMedicationCodeshttp://hl7.org/fhir/ValueSet/medication-codes
                                        (example to http://hl7.org/fhir/ValueSet/medication-codes)
                                        Additional BindingsPurposeDocumentation
                                        Australian Medication .Preferred

                                        This value set is for use when AMT (Australian Medicines Terminology) codes are preferred.

                                        PBS Item CodesPreferred

                                        This value set is for use when PBS (Pharmaceutical Benefits Scheme) item codes are preferred.

                                        MIMSPreferred

                                        This value set is for use when MIMS (Monthly Index of Medical Specialties) codes are preferred.

                                        GTINPreferred

                                        This value set is for use when GTIN (Global Trade Item Number) codes are preferred.

                                        TypeCodeableConcept, Reference(Medication)
                                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                        Is Modifierfalse
                                        Summarytrue
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        18. MedicationRequest.medication[x]:medicationCodeableConcept.coding
                                        Definition

                                        A reference to a code defined by a terminology system.

                                        ShortCode defined by a terminology system
                                        Comments

                                        Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                        Control0..*
                                        TypeCoding
                                        Is Modifierfalse
                                        Summarytrue
                                        Requirements

                                        Allows for alternative encodings within a code system, and translations to other code systems.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                        • pattern @ $this
                                        • 20. MedicationRequest.medication[x]:medicationCodeableConcept.coding.extension:medicationClass
                                          Slice NamemedicationClass
                                          Definition

                                          The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                          ShortMedication type
                                          Control0..1
                                          TypeExtension(Medication Type) (Extension Type: Coding)
                                          Is Modifierfalse
                                          Summaryfalse
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          22. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs
                                          Slice Namepbs
                                          Definition

                                          A reference to a code defined by a terminology system.

                                          ShortCode defined by a terminology system
                                          Comments

                                          Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                          Control0..*
                                          BindingThe codes SHALL be taken from For codes, see PBS Item Codes
                                          (required to http://terminology.hl7.org.au/ValueSet/pbs-item)
                                          TypeCoding
                                          Is Modifierfalse
                                          Must Supporttrue
                                          Obligations
                                            ObligationsActor
                                            SHALL:populate-if-knownAU Core Responder
                                            SHALL:no-errorAU Core Requester
                                            Summarytrue
                                            Requirements

                                            Allows for alternative encodings within a code system, and translations to other code systems.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            24. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.extension:medicationClass
                                            Slice NamemedicationClass
                                            Definition

                                            The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                            ShortMedication type
                                            Control0..1
                                            TypeExtension(Medication Type) (Extension Type: Coding)
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            26. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt
                                            Slice Nameamt
                                            Definition

                                            A reference to a code defined by a terminology system.

                                            ShortCode defined by a terminology system
                                            Comments

                                            Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                            Control0..*
                                            BindingThe codes SHALL be taken from For codes, see Australian Medication .
                                            (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-medication-1)
                                            TypeCoding
                                            Is Modifierfalse
                                            Must Supporttrue
                                            Obligations
                                              ObligationsActor
                                              SHALL:populate-if-knownAU Core Responder
                                              SHALL:no-errorAU Core Requester
                                              Summarytrue
                                              Requirements

                                              Allows for alternative encodings within a code system, and translations to other code systems.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              28. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.extension:medicationClass
                                              Slice NamemedicationClass
                                              Definition

                                              The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                              ShortMedication type
                                              Control0..1
                                              TypeExtension(Medication Type) (Extension Type: Coding)
                                              Is Modifierfalse
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              30. MedicationRequest.medication[x]:medicationReference
                                              Slice NamemedicationReference
                                              Definition

                                              Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                              ShortPrescribed MedicationMedication to be taken
                                              Comments

                                              If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                              Control01..1
                                              TypeReference(AU Core Medication, Medication), CodeableConcept
                                              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                              Is Modifierfalse
                                              Obligations
                                                ObligationsActor
                                                SHALL:populate-if-knownAU Core Responder
                                                SHALL:no-errorAU Core Requester
                                                Summarytrue
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                32. MedicationRequest.subject
                                                Definition

                                                A link to a resource representing the person or set of individuals to whom the medication will be given.

                                                ShortWho or group medication request is for
                                                Comments

                                                The subject on a medication request is mandatory. For the secondary use case where the actual subject is not provided, there still must be an anonymized subject specified.

                                                Control1..1
                                                TypeReference(AU Core Patient, Patient, Group)
                                                Is Modifierfalse
                                                Must Supporttrue
                                                Obligations
                                                  ObligationsActor
                                                  SHALL:populate-if-knownAU Core Responder
                                                  SHALL:no-errorAU Core Requester
                                                  Summarytrue
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  34. MedicationRequest.encounter
                                                  Definition

                                                  The Encounter during which this [x] was created or to which the creation of this record is tightly associated.

                                                  ShortEncounter created as part of encounter/admission/stay
                                                  Comments

                                                  This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter." If there is a need to link to episodes of care they will be handled with an extension.

                                                  Control0..1
                                                  TypeReference(AU Core Encounter, Encounter)
                                                  Is Modifierfalse
                                                  Must Supporttrue
                                                  Obligations
                                                    ObligationsActor
                                                    SHALL:populate-if-knownAU Core Responder
                                                    SHALL:no-errorAU Core Requester
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    36. MedicationRequest.supportingInformation
                                                    Definition

                                                    Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                    ShortInformation to support ordering of the medication
                                                    Control0..*
                                                    TypeReference(Resource)
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    SlicingThis element introduces a set of slices on MedicationRequest.supportingInformation. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                    • profile @ resolve()
                                                    • 38. MedicationRequest.supportingInformation:bodyHeight
                                                      Slice NamebodyHeight
                                                      Definition

                                                      Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                      ShortObservation of Body HeightInformation to support ordering of the medication
                                                      Control0..1*
                                                      TypeReference(Observation Body Height Profile, Resource)
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      40. MedicationRequest.supportingInformation:bodyWeight
                                                      Slice NamebodyWeight
                                                      Definition

                                                      Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                      ShortObservation of Body WeightInformation to support ordering of the medication
                                                      Control0..1*
                                                      TypeReference(Observation Body Weight Profile, Resource)
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      42. MedicationRequest.authoredOn
                                                      Definition

                                                      The date (and perhaps time) when the prescription was initially written or authored on.

                                                      ShortCreated dateWhen request was initially authored
                                                      Control10..1
                                                      This element is affected by the following invariants: au-core-medreq-03
                                                      TypedateTime
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Must Supporttrue
                                                      Obligations
                                                        ObligationsActor
                                                        SHALL:populate-if-knownAU Core Responder
                                                        SHALL:no-errorAU Core Requester
                                                        Summarytrue
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        au-core-medreq-03: Date shall be precise to the day or, if not available, the Data Absent Reason extension shall be present ((toString().length() >= 8) xor extension('http://hl7.org/fhir/StructureDefinition/data-absent-reason').exists())
                                                        44. MedicationRequest.requester
                                                        Definition

                                                        The individual, organization, or device that initiated the request and has responsibility for its activation.

                                                        ShortWho/What requested the Request
                                                        Control10..1
                                                        TypeReference(AU Core Practitioner, AU Core PractitionerRole, AU Core Organization, AU Core Patient, AU Base Related Person, Practitioner, PractitionerRole, Organization, Patient, RelatedPerson, Device)
                                                        Is Modifierfalse
                                                        Must Supporttrue
                                                        Must Support TypesNo must-support rules about the choice of types/profiles
                                                        Obligations
                                                          ObligationsActor
                                                          SHALL:populate-if-knownAU Core Responder
                                                          SHALL:no-errorAU Core Requester
                                                          Summarytrue
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          46. MedicationRequest.reasonCode
                                                          Definition

                                                          The reason or the indication for ordering or not ordering the medication.

                                                          ShortReason or indication for ordering or not ordering the medication
                                                          Comments

                                                          This could be a diagnosis code. If a full condition record exists or additional detail is needed, use reasonReference.

                                                          Control0..*
                                                          BindingThe codes SHOULD be taken from For example codes, see Reason for Request .http://hl7.org/fhir/ValueSet/condition-code
                                                          (preferred to https://healthterminologies.gov.au/fhir/ValueSet/reason-for-request-1)
                                                          TypeCodeableConcept
                                                          Is Modifierfalse
                                                          Must Supporttrue
                                                          Obligations
                                                            ObligationsActor
                                                            SHALL:populate-if-knownAU Core Responder
                                                            SHALL:no-errorAU Core Requester
                                                            Summaryfalse
                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            48. MedicationRequest.reasonReference
                                                            Definition

                                                            Condition or observation that supports why the medication was ordered.

                                                            ShortCondition or observation that supports why the prescription is being written
                                                            Comments

                                                            This is a reference to a condition or observation that is the reason for the medication order. If only a code exists, use reasonCode.

                                                            Control0..*
                                                            TypeReference(AU Core Condition, Observation, Condition)
                                                            Is Modifierfalse
                                                            Must Supporttrue
                                                            Must Support TypesNo must-support rules about the choice of types/profiles
                                                            Obligations
                                                              ObligationsActor
                                                              SHALL:populate-if-knownAU Core Responder
                                                              SHALL:no-errorAU Core Requester
                                                              Summaryfalse
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              50. MedicationRequest.dosageInstruction
                                                              Definition

                                                              Indicates how the medication is/was taken or should be taken by the patient.


                                                              Indicates how the medication is to be used by the patient.

                                                              ShortDosage information in an Australian healthcare contextHow the medication should be taken
                                                              Comments

                                                              There are examples where a medication request may include the option of an oral dose or an Intravenous or Intramuscular dose. For example, "Ondansetron 8mg orally or IV twice a day as needed for nausea" or "Compazine® (prochlorperazine) 5-10mg PO or 25mg PR bid prn nausea or vomiting". In these cases, two medication requests would be created that could be grouped together. The decision on which dose and route of administration to use is based on the patient's condition at the time the dose is needed.

                                                              Control0..*
                                                              TypeDosage(AU Base Dosage)
                                                              Is Modifierfalse
                                                              Must Supporttrue
                                                              Obligations
                                                                ObligationsActor
                                                                SHALL:populate-if-knownAU Core Responder
                                                                SHALL:no-errorAU Core Requester
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

                                                                Guidance on how to interpret the contents of this table can be found here

                                                                0. MedicationRequest
                                                                Definition

                                                                An order or request for both supply of the medication and the instructions for administration of the medication to a patient. The resource is called "MedicationRequest" rather than "MedicationPrescription" or "MedicationOrder" to generalize the use across inpatient and outpatient settings, including care plans, etc., and to harmonize with workflow patterns.

                                                                ShortA request for a medication for a patient in an Australian healthcare context
                                                                Control0..*
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Alternate NamesPrescription, Order
                                                                Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
                                                                dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
                                                                dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
                                                                dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
                                                                dom-6: A resource should have narrative for robust management (text.`div`.exists())
                                                                2. MedicationRequest.id
                                                                Definition

                                                                The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

                                                                ShortLogical id of this artifact
                                                                Comments

                                                                The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

                                                                Control0..1
                                                                Typeid
                                                                Is Modifierfalse
                                                                Summarytrue
                                                                4. MedicationRequest.meta
                                                                Definition

                                                                The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

                                                                ShortMetadata about the resource
                                                                Control0..1
                                                                TypeMeta
                                                                Is Modifierfalse
                                                                Summarytrue
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                6. MedicationRequest.implicitRules
                                                                Definition

                                                                A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

                                                                ShortA set of rules under which this content was created
                                                                Comments

                                                                Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

                                                                Control0..1
                                                                Typeuri
                                                                Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                Summarytrue
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                8. MedicationRequest.language
                                                                Definition

                                                                The base language in which the resource is written.

                                                                ShortLanguage of the resource content
                                                                Comments

                                                                Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

                                                                Control0..1
                                                                BindingThe codes SHOULD be taken from CommonLanguages
                                                                (preferred to http://hl7.org/fhir/ValueSet/languages)

                                                                A human language.

                                                                Additional BindingsPurpose
                                                                AllLanguagesMax Binding
                                                                Typecode
                                                                Is Modifierfalse
                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                Summaryfalse
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                10. MedicationRequest.text
                                                                Definition

                                                                A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

                                                                ShortText summary of the resource, for human interpretation
                                                                Comments

                                                                Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

                                                                Control0..1
                                                                TypeNarrative
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Alternate Namesnarrative, html, xhtml, display
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                12. MedicationRequest.contained
                                                                Definition

                                                                These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

                                                                ShortContained, inline Resources
                                                                Comments

                                                                This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

                                                                Control0..*
                                                                TypeResource
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Alternate Namesinline resources, anonymous resources, contained resources
                                                                14. MedicationRequest.extension
                                                                Definition

                                                                An Extension

                                                                ShortExtension
                                                                Control0..*
                                                                TypeExtension
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                SlicingThis element introduces a set of slices on MedicationRequest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                • value @ url
                                                                • 16. MedicationRequest.extension:subsidisedConcurrentSupply
                                                                  Slice NamesubsidisedConcurrentSupply
                                                                  Definition

                                                                  The grounds which authorise a PBS or RPBS subsidy for the concurrent supply of a medication item specified in a prescription and all of its repeats.

                                                                  ShortGrounds for concurrent supply of medication
                                                                  Control0..1
                                                                  This element is affected by the following invariants: ele-1
                                                                  TypeExtension(Subsidised Concurrent Supply) (Extension Type: Coding)
                                                                  Is Modifierfalse
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                  18. MedicationRequest.modifierExtension
                                                                  Definition

                                                                  May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                  ShortExtensions that cannot be ignored
                                                                  Comments

                                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                  Control0..*
                                                                  TypeExtension
                                                                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                                                                  Summaryfalse
                                                                  Requirements

                                                                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                  Alternate Namesextensions, user content
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                  20. MedicationRequest.identifier
                                                                  Definition

                                                                  Identifiers associated with this medication request that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. They are business identifiers assigned to this resource by the performer or other systems and remain constant as the resource is updated and propagates from server to server.

                                                                  ShortExternal ids for this request
                                                                  Comments

                                                                  This is a business identifier, not a resource identifier.

                                                                  NoteThis is a business identifier, not a resource identifier (see discussion)
                                                                  Control0..*
                                                                  This element is affected by the following invariants: ele-1
                                                                  TypeIdentifier(Identifier, AU ETP Prescription Identifier, AU Local Prescription Identifier)
                                                                  Is Modifierfalse
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  22. MedicationRequest.status
                                                                  Definition

                                                                  A code specifying the current state of the order. Generally, this will be active or completed state.

                                                                  Shortactive | on-hold | cancelled | completed | entered-in-error | stopped | draft | unknown
                                                                  Comments

                                                                  This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

                                                                  Control1..1
                                                                  BindingThe codes SHALL be taken from medicationrequest Status
                                                                  (required to http://hl7.org/fhir/ValueSet/medicationrequest-status|4.0.1)

                                                                  A coded concept specifying the state of the prescribing event. Describes the lifecycle of the prescription.

                                                                  Typecode
                                                                  Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                  Must Supporttrue
                                                                  Obligations
                                                                    ObligationsActor
                                                                    SHALL:populate-if-knownAU Core Responder
                                                                    SHALL:no-errorAU Core Requester
                                                                    Summarytrue
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    24. MedicationRequest.statusReason
                                                                    Definition

                                                                    Captures the reason for the current state of the MedicationRequest.

                                                                    ShortReason for current status
                                                                    Comments

                                                                    This is generally only used for "exception" statuses such as "suspended" or "cancelled". The reason why the MedicationRequest was created at all is captured in reasonCode, not here.

                                                                    Control0..1
                                                                    BindingFor example codes, see medicationRequest Status Reason Codes
                                                                    (example to http://hl7.org/fhir/ValueSet/medicationrequest-status-reason)

                                                                    Identifies the reasons for a given status.

                                                                    TypeCodeableConcept
                                                                    Is Modifierfalse
                                                                    Summaryfalse
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    26. MedicationRequest.intent
                                                                    Definition

                                                                    Whether the request is a proposal, plan, or an original order.

                                                                    Shortproposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
                                                                    Comments

                                                                    It is expected that the type of requester will be restricted for different stages of a MedicationRequest. For example, Proposals can be created by a patient, relatedPerson, Practitioner or Device. Plans can be created by Practitioners, Patients, RelatedPersons and Devices. Original orders can be created by a Practitioner only.

                                                                    An instance-order is an instantiation of a request or order and may be used to populate Medication Administration Record.

                                                                    This element is labeled as a modifier because the intent alters when and how the resource is actually applicable.

                                                                    Control1..1
                                                                    BindingThe codes SHALL be taken from medicationRequest Intent
                                                                    (required to http://hl7.org/fhir/ValueSet/medicationrequest-intent|4.0.1)

                                                                    The kind of medication order.

                                                                    Typecode
                                                                    Is Modifiertrue because This element changes the interpretation of all descriptive attributes. For example "the time the request is recommended to occur" vs. "the time the request is authorized to occur" or "who is recommended to perform the request" vs. "who is authorized to perform the request
                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                    Must Supporttrue
                                                                    Obligations
                                                                      ObligationsActor
                                                                      SHALL:populate-if-knownAU Core Responder
                                                                      SHALL:no-errorAU Core Requester
                                                                      Summarytrue
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      28. MedicationRequest.category
                                                                      Definition

                                                                      Indicates the type of medication request (for example, where the medication is expected to be consumed or administered (i.e. inpatient or outpatient)).

                                                                      ShortType of medication usage
                                                                      Comments

                                                                      The category can be used to include where the medication is expected to be consumed or other types of requests.

                                                                      Control0..*
                                                                      BindingFor example codes, see medicationRequest Category Codes
                                                                      (example to http://hl7.org/fhir/ValueSet/medicationrequest-category)

                                                                      A coded concept identifying the category of medication request. For example, where the medication is to be consumed or administered, or the type of medication treatment.

                                                                      TypeCodeableConcept
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      30. MedicationRequest.priority
                                                                      Definition

                                                                      Indicates how quickly the Medication Request should be addressed with respect to other requests.

                                                                      Shortroutine | urgent | asap | stat
                                                                      Control0..1
                                                                      BindingThe codes SHALL be taken from RequestPriority
                                                                      (required to http://hl7.org/fhir/ValueSet/request-priority|4.0.1)

                                                                      Identifies the level of importance to be assigned to actioning the request.

                                                                      Typecode
                                                                      Is Modifierfalse
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      32. MedicationRequest.doNotPerform
                                                                      Definition

                                                                      If true indicates that the provider is asking for the medication request not to occur.

                                                                      ShortTrue if request is prohibiting action
                                                                      Comments

                                                                      If do not perform is not specified, the request is a positive request e.g. "do perform".

                                                                      Control0..1
                                                                      Typeboolean
                                                                      Is Modifiertrue because This element is labeled as a modifier because this element negates the request to occur (ie, this is a request for the medication not to be ordered or prescribed, etc)
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      34. MedicationRequest.reported[x]
                                                                      Definition

                                                                      Indicates if this record was captured as a secondary 'reported' record rather than as an original primary source-of-truth record. It may also indicate the source of the report.

                                                                      ShortReported rather than primary record
                                                                      Control0..1
                                                                      TypeChoice of: boolean, Reference(Patient, Practitioner, PractitionerRole, RelatedPerson, Organization)
                                                                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                      Is Modifierfalse
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      36. MedicationRequest.medication[x]
                                                                      Definition

                                                                      Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                                                      ShortMedication to be taken
                                                                      Comments

                                                                      If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                                                      Control1..1
                                                                      BindingFor example codes, see SNOMEDCTMedicationCodes
                                                                      (example to http://hl7.org/fhir/ValueSet/medication-codes)

                                                                      A coded concept identifying substance or product that can be ordered.

                                                                      TypeChoice of: CodeableConcept, Reference(Medication)
                                                                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                      Is Modifierfalse
                                                                      Must Supporttrue
                                                                      Must Support TypesNo must-support rules about the choice of types/profiles
                                                                      Obligations
                                                                        ObligationsActor
                                                                        SHALL:populate-if-knownAU Core Responder
                                                                        SHALL:no-errorAU Core Requester
                                                                        Summarytrue
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        SlicingThis element introduces a set of slices on MedicationRequest.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
                                                                        • type @ $this
                                                                        • 38. MedicationRequest.medication[x]:medicationCodeableConcept
                                                                          Slice NamemedicationCodeableConcept
                                                                          Definition

                                                                          Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                                                          ShortCoded Prescribed Medication
                                                                          Comments

                                                                          If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                                                          Control0..1
                                                                          BindingFor example codes, see SNOMEDCTMedicationCodes
                                                                          (example to http://hl7.org/fhir/ValueSet/medication-codes)
                                                                          Additional BindingsPurposeDocumentation
                                                                          Australian Medication .Preferred

                                                                          This value set is for use when AMT (Australian Medicines Terminology) codes are preferred.

                                                                          PBS Item CodesPreferred

                                                                          This value set is for use when PBS (Pharmaceutical Benefits Scheme) item codes are preferred.

                                                                          MIMSPreferred

                                                                          This value set is for use when MIMS (Monthly Index of Medical Specialties) codes are preferred.

                                                                          GTINPreferred

                                                                          This value set is for use when GTIN (Global Trade Item Number) codes are preferred.

                                                                          TypeCodeableConcept
                                                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                          Is Modifierfalse
                                                                          Summarytrue
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          40. MedicationRequest.medication[x]:medicationCodeableConcept.id
                                                                          Definition

                                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                          ShortUnique id for inter-element referencing
                                                                          Control0..1
                                                                          Typestring
                                                                          Is Modifierfalse
                                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                                          Summaryfalse
                                                                          42. MedicationRequest.medication[x]:medicationCodeableConcept.extension
                                                                          Definition

                                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                          ShortAdditional content defined by implementations
                                                                          Comments

                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                          Control0..*
                                                                          TypeExtension
                                                                          Is Modifierfalse
                                                                          Summaryfalse
                                                                          Alternate Namesextensions, user content
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                          SlicingThis element introduces a set of slices on MedicationRequest.medication[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                          • value @ url
                                                                          • 44. MedicationRequest.medication[x]:medicationCodeableConcept.coding
                                                                            Definition

                                                                            A reference to a code defined by a terminology system.

                                                                            ShortCode defined by a terminology system
                                                                            Comments

                                                                            Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                                            Control0..*
                                                                            TypeCoding
                                                                            Is Modifierfalse
                                                                            Summarytrue
                                                                            Requirements

                                                                            Allows for alternative encodings within a code system, and translations to other code systems.

                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                            • pattern @ $this
                                                                            • 46. MedicationRequest.medication[x]:medicationCodeableConcept.coding.id
                                                                              Definition

                                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                              ShortUnique id for inter-element referencing
                                                                              Control0..1
                                                                              Typestring
                                                                              Is Modifierfalse
                                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                                              Summaryfalse
                                                                              48. MedicationRequest.medication[x]:medicationCodeableConcept.coding.extension
                                                                              Definition

                                                                              An Extension

                                                                              ShortExtension
                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                              • value @ url
                                                                              • 50. MedicationRequest.medication[x]:medicationCodeableConcept.coding.extension:medicationClass
                                                                                Slice NamemedicationClass
                                                                                Definition

                                                                                The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                                                                ShortMedication type
                                                                                Control0..1
                                                                                TypeExtension(Medication Type) (Extension Type: Coding)
                                                                                Is Modifierfalse
                                                                                Summaryfalse
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                52. MedicationRequest.medication[x]:medicationCodeableConcept.coding.system
                                                                                Definition

                                                                                The identification of the code system that defines the meaning of the symbol in the code.

                                                                                ShortIdentity of the terminology system
                                                                                Comments

                                                                                The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                                                Control0..1
                                                                                Typeuri
                                                                                Is Modifierfalse
                                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                Summarytrue
                                                                                Requirements

                                                                                Need to be unambiguous about the source of the definition of the symbol.

                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                54. MedicationRequest.medication[x]:medicationCodeableConcept.coding.version
                                                                                Definition

                                                                                The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                                                ShortVersion of the system - if relevant
                                                                                Comments

                                                                                Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                                                NoteThis is a business version Id, not a resource version Id (see discussion)
                                                                                Control0..1
                                                                                Typestring
                                                                                Is Modifierfalse
                                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                Summarytrue
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                56. MedicationRequest.medication[x]:medicationCodeableConcept.coding.code
                                                                                Definition

                                                                                A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                                                ShortSymbol in syntax defined by the system
                                                                                Control0..1
                                                                                Typecode
                                                                                Is Modifierfalse
                                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                Summarytrue
                                                                                Requirements

                                                                                Need to refer to a particular code in the system.

                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                58. MedicationRequest.medication[x]:medicationCodeableConcept.coding.display
                                                                                Definition

                                                                                A representation of the meaning of the code in the system, following the rules of the system.

                                                                                ShortRepresentation defined by the system
                                                                                Control0..1
                                                                                Typestring
                                                                                Is Modifierfalse
                                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                Summarytrue
                                                                                Requirements

                                                                                Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                60. MedicationRequest.medication[x]:medicationCodeableConcept.coding.userSelected
                                                                                Definition

                                                                                Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                                                ShortIf this coding was chosen directly by the user
                                                                                Comments

                                                                                Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                                                Control0..1
                                                                                Typeboolean
                                                                                Is Modifierfalse
                                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                Summarytrue
                                                                                Requirements

                                                                                This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                62. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs
                                                                                Slice Namepbs
                                                                                Definition

                                                                                A reference to a code defined by a terminology system.

                                                                                ShortCode defined by a terminology system
                                                                                Comments

                                                                                Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                                                Control0..*
                                                                                BindingThe codes SHALL be taken from PBS Item Codes
                                                                                (required to http://terminology.hl7.org.au/ValueSet/pbs-item)
                                                                                TypeCoding
                                                                                Is Modifierfalse
                                                                                Must Supporttrue
                                                                                Obligations
                                                                                  ObligationsActor
                                                                                  SHALL:populate-if-knownAU Core Responder
                                                                                  SHALL:no-errorAU Core Requester
                                                                                  Summarytrue
                                                                                  Requirements

                                                                                  Allows for alternative encodings within a code system, and translations to other code systems.

                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  64. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.id
                                                                                  Definition

                                                                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                  ShortUnique id for inter-element referencing
                                                                                  Control0..1
                                                                                  Typestring
                                                                                  Is Modifierfalse
                                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                                  Summaryfalse
                                                                                  66. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.extension
                                                                                  Definition

                                                                                  An Extension

                                                                                  ShortExtension
                                                                                  Control0..*
                                                                                  TypeExtension
                                                                                  Is Modifierfalse
                                                                                  Summaryfalse
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                  SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                                  • value @ url
                                                                                  • 68. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.extension:medicationClass
                                                                                    Slice NamemedicationClass
                                                                                    Definition

                                                                                    The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                                                                    ShortMedication type
                                                                                    Control0..1
                                                                                    TypeExtension(Medication Type) (Extension Type: Coding)
                                                                                    Is Modifierfalse
                                                                                    Summaryfalse
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                    70. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.system
                                                                                    Definition

                                                                                    The identification of the code system that defines the meaning of the symbol in the code.

                                                                                    ShortIdentity of the terminology system
                                                                                    Comments

                                                                                    The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                                                    Control0..1
                                                                                    Typeuri
                                                                                    Is Modifierfalse
                                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                    Summarytrue
                                                                                    Requirements

                                                                                    Need to be unambiguous about the source of the definition of the symbol.

                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    72. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.version
                                                                                    Definition

                                                                                    The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                                                    ShortVersion of the system - if relevant
                                                                                    Comments

                                                                                    Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                                                    NoteThis is a business version Id, not a resource version Id (see discussion)
                                                                                    Control0..1
                                                                                    Typestring
                                                                                    Is Modifierfalse
                                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                    Summarytrue
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    74. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.code
                                                                                    Definition

                                                                                    A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                                                    ShortSymbol in syntax defined by the system
                                                                                    Control0..1
                                                                                    Typecode
                                                                                    Is Modifierfalse
                                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                    Summarytrue
                                                                                    Requirements

                                                                                    Need to refer to a particular code in the system.

                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    76. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.display
                                                                                    Definition

                                                                                    A representation of the meaning of the code in the system, following the rules of the system.

                                                                                    ShortRepresentation defined by the system
                                                                                    Control0..1
                                                                                    Typestring
                                                                                    Is Modifierfalse
                                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                    Summarytrue
                                                                                    Requirements

                                                                                    Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    78. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.userSelected
                                                                                    Definition

                                                                                    Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                                                    ShortIf this coding was chosen directly by the user
                                                                                    Comments

                                                                                    Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                                                    Control0..1
                                                                                    Typeboolean
                                                                                    Is Modifierfalse
                                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                    Summarytrue
                                                                                    Requirements

                                                                                    This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    80. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt
                                                                                    Slice Nameamt
                                                                                    Definition

                                                                                    A reference to a code defined by a terminology system.

                                                                                    ShortCode defined by a terminology system
                                                                                    Comments

                                                                                    Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                                                    Control0..*
                                                                                    BindingThe codes SHALL be taken from Australian Medication .
                                                                                    (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-medication-1)
                                                                                    TypeCoding
                                                                                    Is Modifierfalse
                                                                                    Must Supporttrue
                                                                                    Obligations
                                                                                      ObligationsActor
                                                                                      SHALL:populate-if-knownAU Core Responder
                                                                                      SHALL:no-errorAU Core Requester
                                                                                      Summarytrue
                                                                                      Requirements

                                                                                      Allows for alternative encodings within a code system, and translations to other code systems.

                                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                      82. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.id
                                                                                      Definition

                                                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                      ShortUnique id for inter-element referencing
                                                                                      Control0..1
                                                                                      Typestring
                                                                                      Is Modifierfalse
                                                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                                                      Summaryfalse
                                                                                      84. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.extension
                                                                                      Definition

                                                                                      An Extension

                                                                                      ShortExtension
                                                                                      Control0..*
                                                                                      TypeExtension
                                                                                      Is Modifierfalse
                                                                                      Summaryfalse
                                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                      SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                                      • value @ url
                                                                                      • 86. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.extension:medicationClass
                                                                                        Slice NamemedicationClass
                                                                                        Definition

                                                                                        The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                                                                        ShortMedication type
                                                                                        Control0..1
                                                                                        TypeExtension(Medication Type) (Extension Type: Coding)
                                                                                        Is Modifierfalse
                                                                                        Summaryfalse
                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                        88. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.system
                                                                                        Definition

                                                                                        The identification of the code system that defines the meaning of the symbol in the code.

                                                                                        ShortIdentity of the terminology system
                                                                                        Comments

                                                                                        The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                                                        Control0..1
                                                                                        Typeuri
                                                                                        Is Modifierfalse
                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                        Summarytrue
                                                                                        Requirements

                                                                                        Need to be unambiguous about the source of the definition of the symbol.

                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                        90. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.version
                                                                                        Definition

                                                                                        The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                                                        ShortVersion of the system - if relevant
                                                                                        Comments

                                                                                        Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                                                        NoteThis is a business version Id, not a resource version Id (see discussion)
                                                                                        Control0..1
                                                                                        Typestring
                                                                                        Is Modifierfalse
                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                        Summarytrue
                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                        92. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.code
                                                                                        Definition

                                                                                        A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                                                        ShortSymbol in syntax defined by the system
                                                                                        Control0..1
                                                                                        Typecode
                                                                                        Is Modifierfalse
                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                        Summarytrue
                                                                                        Requirements

                                                                                        Need to refer to a particular code in the system.

                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                        94. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.display
                                                                                        Definition

                                                                                        A representation of the meaning of the code in the system, following the rules of the system.

                                                                                        ShortRepresentation defined by the system
                                                                                        Control0..1
                                                                                        Typestring
                                                                                        Is Modifierfalse
                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                        Summarytrue
                                                                                        Requirements

                                                                                        Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                        96. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.userSelected
                                                                                        Definition

                                                                                        Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                                                        ShortIf this coding was chosen directly by the user
                                                                                        Comments

                                                                                        Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                                                        Control0..1
                                                                                        Typeboolean
                                                                                        Is Modifierfalse
                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                        Summarytrue
                                                                                        Requirements

                                                                                        This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                        98. MedicationRequest.medication[x]:medicationCodeableConcept.text
                                                                                        Definition

                                                                                        A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                                                        This may be a brand or generic name as suitable for the intent of the entry.

                                                                                        ShortMedication primary text
                                                                                        Comments

                                                                                        Very often the text is the same as a displayName of one of the codings.

                                                                                        Control0..1
                                                                                        Typestring
                                                                                        Is Modifierfalse
                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                        Summarytrue
                                                                                        Requirements

                                                                                        The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                        100. MedicationRequest.medication[x]:medicationReference
                                                                                        Slice NamemedicationReference
                                                                                        Definition

                                                                                        Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                                                                        ShortPrescribed Medication
                                                                                        Comments

                                                                                        If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                                                                        Control0..1
                                                                                        TypeReference(AU Core Medication)
                                                                                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                                        Is Modifierfalse
                                                                                        Obligations
                                                                                          ObligationsActor
                                                                                          SHALL:populate-if-knownAU Core Responder
                                                                                          SHALL:no-errorAU Core Requester
                                                                                          Summarytrue
                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                          102. MedicationRequest.subject
                                                                                          Definition

                                                                                          A link to a resource representing the person or set of individuals to whom the medication will be given.

                                                                                          ShortWho or group medication request is for
                                                                                          Comments

                                                                                          The subject on a medication request is mandatory. For the secondary use case where the actual subject is not provided, there still must be an anonymized subject specified.

                                                                                          Control1..1
                                                                                          TypeReference(AU Core Patient)
                                                                                          Is Modifierfalse
                                                                                          Must Supporttrue
                                                                                          Obligations
                                                                                            ObligationsActor
                                                                                            SHALL:populate-if-knownAU Core Responder
                                                                                            SHALL:no-errorAU Core Requester
                                                                                            Summarytrue
                                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                            104. MedicationRequest.encounter
                                                                                            Definition

                                                                                            The Encounter during which this [x] was created or to which the creation of this record is tightly associated.

                                                                                            ShortEncounter created as part of encounter/admission/stay
                                                                                            Comments

                                                                                            This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter." If there is a need to link to episodes of care they will be handled with an extension.

                                                                                            Control0..1
                                                                                            TypeReference(AU Core Encounter)
                                                                                            Is Modifierfalse
                                                                                            Must Supporttrue
                                                                                            Obligations
                                                                                              ObligationsActor
                                                                                              SHALL:populate-if-knownAU Core Responder
                                                                                              SHALL:no-errorAU Core Requester
                                                                                              Summaryfalse
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              106. MedicationRequest.supportingInformation
                                                                                              Definition

                                                                                              Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                                                              ShortInformation to support ordering of the medication
                                                                                              Control0..*
                                                                                              TypeReference(Resource)
                                                                                              Is Modifierfalse
                                                                                              Summaryfalse
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              SlicingThis element introduces a set of slices on MedicationRequest.supportingInformation. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                                              • profile @ resolve()
                                                                                              • 108. MedicationRequest.supportingInformation:bodyHeight
                                                                                                Slice NamebodyHeight
                                                                                                Definition

                                                                                                Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                                                                ShortObservation of Body Height
                                                                                                Control0..1
                                                                                                TypeReference(Observation Body Height Profile)
                                                                                                Is Modifierfalse
                                                                                                Summaryfalse
                                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                110. MedicationRequest.supportingInformation:bodyWeight
                                                                                                Slice NamebodyWeight
                                                                                                Definition

                                                                                                Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                                                                ShortObservation of Body Weight
                                                                                                Control0..1
                                                                                                TypeReference(Observation Body Weight Profile)
                                                                                                Is Modifierfalse
                                                                                                Summaryfalse
                                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                112. MedicationRequest.authoredOn
                                                                                                Definition

                                                                                                The date (and perhaps time) when the prescription was initially written or authored on.

                                                                                                ShortCreated date
                                                                                                Control1..1
                                                                                                This element is affected by the following invariants: au-core-medreq-03
                                                                                                TypedateTime
                                                                                                Is Modifierfalse
                                                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                                Must Supporttrue
                                                                                                Obligations
                                                                                                  ObligationsActor
                                                                                                  SHALL:populate-if-knownAU Core Responder
                                                                                                  SHALL:no-errorAU Core Requester
                                                                                                  Summarytrue
                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  au-core-medreq-03: Date shall be precise to the day or, if not available, the Data Absent Reason extension shall be present ((toString().length() >= 8) xor extension('http://hl7.org/fhir/StructureDefinition/data-absent-reason').exists())
                                                                                                  114. MedicationRequest.requester
                                                                                                  Definition

                                                                                                  The individual, organization, or device that initiated the request and has responsibility for its activation.

                                                                                                  ShortWho/What requested the Request
                                                                                                  Control1..1
                                                                                                  TypeReference(AU Core Practitioner, AU Core PractitionerRole, AU Core Organization, AU Core Patient, AU Base Related Person)
                                                                                                  Is Modifierfalse
                                                                                                  Must Supporttrue
                                                                                                  Must Support TypesNo must-support rules about the choice of types/profiles
                                                                                                  Obligations
                                                                                                    ObligationsActor
                                                                                                    SHALL:populate-if-knownAU Core Responder
                                                                                                    SHALL:no-errorAU Core Requester
                                                                                                    Summarytrue
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    116. MedicationRequest.performer
                                                                                                    Definition

                                                                                                    The specified desired performer of the medication treatment (e.g. the performer of the medication administration).

                                                                                                    ShortIntended performer of administration
                                                                                                    Control0..1
                                                                                                    TypeReference(Practitioner, PractitionerRole, Organization, Patient, Device, RelatedPerson, CareTeam)
                                                                                                    Is Modifierfalse
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    118. MedicationRequest.performerType
                                                                                                    Definition

                                                                                                    Indicates the type of performer of the administration of the medication.

                                                                                                    ShortDesired kind of performer of the medication administration
                                                                                                    Comments

                                                                                                    If specified without indicating a performer, this indicates that the performer must be of the specified type. If specified with a performer then it indicates the requirements of the performer if the designated performer is not available.

                                                                                                    Control0..1
                                                                                                    BindingFor example codes, see ProcedurePerformerRoleCodes
                                                                                                    (example to http://hl7.org/fhir/ValueSet/performer-role)

                                                                                                    Identifies the type of individual that is desired to administer the medication.

                                                                                                    TypeCodeableConcept
                                                                                                    Is Modifierfalse
                                                                                                    Summarytrue
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    120. MedicationRequest.recorder
                                                                                                    Definition

                                                                                                    The person who entered the order on behalf of another individual for example in the case of a verbal or a telephone order.

                                                                                                    ShortPerson who entered the request
                                                                                                    Control0..1
                                                                                                    TypeReference(Practitioner, PractitionerRole)
                                                                                                    Is Modifierfalse
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    122. MedicationRequest.reasonCode
                                                                                                    Definition

                                                                                                    The reason or the indication for ordering or not ordering the medication.

                                                                                                    ShortReason or indication for ordering or not ordering the medication
                                                                                                    Comments

                                                                                                    This could be a diagnosis code. If a full condition record exists or additional detail is needed, use reasonReference.

                                                                                                    Control0..*
                                                                                                    BindingThe codes SHOULD be taken from Reason for Request .
                                                                                                    (preferred to https://healthterminologies.gov.au/fhir/ValueSet/reason-for-request-1)
                                                                                                    TypeCodeableConcept
                                                                                                    Is Modifierfalse
                                                                                                    Must Supporttrue
                                                                                                    Obligations
                                                                                                      ObligationsActor
                                                                                                      SHALL:populate-if-knownAU Core Responder
                                                                                                      SHALL:no-errorAU Core Requester
                                                                                                      Summaryfalse
                                                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                      124. MedicationRequest.reasonReference
                                                                                                      Definition

                                                                                                      Condition or observation that supports why the medication was ordered.

                                                                                                      ShortCondition or observation that supports why the prescription is being written
                                                                                                      Comments

                                                                                                      This is a reference to a condition or observation that is the reason for the medication order. If only a code exists, use reasonCode.

                                                                                                      Control0..*
                                                                                                      TypeReference(AU Core Condition, Observation)
                                                                                                      Is Modifierfalse
                                                                                                      Must Supporttrue
                                                                                                      Must Support TypesNo must-support rules about the choice of types/profiles
                                                                                                      Obligations
                                                                                                        ObligationsActor
                                                                                                        SHALL:populate-if-knownAU Core Responder
                                                                                                        SHALL:no-errorAU Core Requester
                                                                                                        Summaryfalse
                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        126. MedicationRequest.instantiatesCanonical
                                                                                                        Definition

                                                                                                        The URL pointing to a protocol, guideline, orderset, or other definition that is adhered to in whole or in part by this MedicationRequest.

                                                                                                        ShortInstantiates FHIR protocol or definition
                                                                                                        Control0..*
                                                                                                        Typecanonical
                                                                                                        Is Modifierfalse
                                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                                        Summarytrue
                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        128. MedicationRequest.instantiatesUri
                                                                                                        Definition

                                                                                                        The URL pointing to an externally maintained protocol, guideline, orderset or other definition that is adhered to in whole or in part by this MedicationRequest.

                                                                                                        ShortInstantiates external protocol or definition
                                                                                                        Control0..*
                                                                                                        Typeuri
                                                                                                        Is Modifierfalse
                                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                                        Summarytrue
                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        130. MedicationRequest.basedOn
                                                                                                        Definition

                                                                                                        A plan or request that is fulfilled in whole or in part by this medication request.

                                                                                                        ShortWhat request fulfills
                                                                                                        Control0..*
                                                                                                        TypeReference(CarePlan, MedicationRequest, ServiceRequest, ImmunizationRecommendation)
                                                                                                        Is Modifierfalse
                                                                                                        Summarytrue
                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        132. MedicationRequest.groupIdentifier
                                                                                                        Definition

                                                                                                        A shared identifier common to all requests that were authorized more or less simultaneously by a single author, representing the identifier of the requisition or prescription.

                                                                                                        ShortComposite request this is part of
                                                                                                        Control0..1
                                                                                                        TypeIdentifier
                                                                                                        Is Modifierfalse
                                                                                                        Summarytrue
                                                                                                        Requirements

                                                                                                        Requests are linked either by a "basedOn" relationship (i.e. one request is fulfilling another) or by having a common requisition. Requests that are part of the same requisition are generally treated independently from the perspective of changing their state or maintaining them after initial creation.

                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        134. MedicationRequest.courseOfTherapyType
                                                                                                        Definition

                                                                                                        The description of the overall patte3rn of the administration of the medication to the patient.

                                                                                                        ShortOverall pattern of medication administration
                                                                                                        Comments

                                                                                                        This attribute should not be confused with the protocol of the medication.

                                                                                                        Control0..1
                                                                                                        BindingFor example codes, see medicationRequest Course of Therapy Codes
                                                                                                        (example to http://hl7.org/fhir/ValueSet/medicationrequest-course-of-therapy)

                                                                                                        Identifies the overall pattern of medication administratio.

                                                                                                        TypeCodeableConcept
                                                                                                        Is Modifierfalse
                                                                                                        Summaryfalse
                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        136. MedicationRequest.insurance
                                                                                                        Definition

                                                                                                        Insurance plans, coverage extensions, pre-authorizations and/or pre-determinations that may be required for delivering the requested service.

                                                                                                        ShortAssociated insurance coverage
                                                                                                        Control0..*
                                                                                                        TypeReference(Coverage, ClaimResponse)
                                                                                                        Is Modifierfalse
                                                                                                        Summaryfalse
                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        138. MedicationRequest.note
                                                                                                        Definition

                                                                                                        Extra information about the prescription that could not be conveyed by the other attributes.

                                                                                                        ShortInformation about the prescription
                                                                                                        Control0..*
                                                                                                        TypeAnnotation
                                                                                                        Is Modifierfalse
                                                                                                        Summaryfalse
                                                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                        140. MedicationRequest.dosageInstruction
                                                                                                        Definition

                                                                                                        Indicates how the medication is/was taken or should be taken by the patient.

                                                                                                        ShortDosage information in an Australian healthcare context
                                                                                                        Comments

                                                                                                        There are examples where a medication request may include the option of an oral dose or an Intravenous or Intramuscular dose. For example, "Ondansetron 8mg orally or IV twice a day as needed for nausea" or "Compazine® (prochlorperazine) 5-10mg PO or 25mg PR bid prn nausea or vomiting". In these cases, two medication requests would be created that could be grouped together. The decision on which dose and route of administration to use is based on the patient's condition at the time the dose is needed.

                                                                                                        Control0..*
                                                                                                        TypeDosage(AU Base Dosage)
                                                                                                        Is Modifierfalse
                                                                                                        Must Supporttrue
                                                                                                        Obligations
                                                                                                          ObligationsActor
                                                                                                          SHALL:populate-if-knownAU Core Responder
                                                                                                          SHALL:no-errorAU Core Requester
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          142. MedicationRequest.dispenseRequest
                                                                                                          Definition

                                                                                                          Indicates the specific details for the dispense or medication supply part of a medication request (also known as a Medication Prescription or Medication Order). Note that this information is not always sent with the order. There may be in some settings (e.g. hospitals) institutional or system support for completing the dispense details in the pharmacy department.

                                                                                                          ShortRequested dispensing
                                                                                                          Control0..1
                                                                                                          TypeBackboneElement
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          144. MedicationRequest.dispenseRequest.id
                                                                                                          Definition

                                                                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                                          ShortUnique id for inter-element referencing
                                                                                                          Control0..1
                                                                                                          Typestring
                                                                                                          Is Modifierfalse
                                                                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                                                                          Summaryfalse
                                                                                                          146. MedicationRequest.dispenseRequest.extension
                                                                                                          Definition

                                                                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                                          ShortAdditional content defined by implementations
                                                                                                          Comments

                                                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                          Control0..*
                                                                                                          TypeExtension
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Alternate Namesextensions, user content
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                          148. MedicationRequest.dispenseRequest.modifierExtension
                                                                                                          Definition

                                                                                                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                                                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                                                          ShortExtensions that cannot be ignored even if unrecognized
                                                                                                          Comments

                                                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                          Control0..*
                                                                                                          TypeExtension
                                                                                                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                                                          Summarytrue
                                                                                                          Requirements

                                                                                                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                                                          Alternate Namesextensions, user content, modifiers
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                          150. MedicationRequest.dispenseRequest.initialFill
                                                                                                          Definition

                                                                                                          Indicates the quantity or duration for the first dispense of the medication.

                                                                                                          ShortFirst fill details
                                                                                                          Comments

                                                                                                          If populating this element, either the quantity or the duration must be included.

                                                                                                          Control0..1
                                                                                                          TypeBackboneElement
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          152. MedicationRequest.dispenseRequest.initialFill.id
                                                                                                          Definition

                                                                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                                          ShortUnique id for inter-element referencing
                                                                                                          Control0..1
                                                                                                          Typestring
                                                                                                          Is Modifierfalse
                                                                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                                                                          Summaryfalse
                                                                                                          154. MedicationRequest.dispenseRequest.initialFill.extension
                                                                                                          Definition

                                                                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                                          ShortAdditional content defined by implementations
                                                                                                          Comments

                                                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                          Control0..*
                                                                                                          TypeExtension
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Alternate Namesextensions, user content
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                          156. MedicationRequest.dispenseRequest.initialFill.modifierExtension
                                                                                                          Definition

                                                                                                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                                                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                                                          ShortExtensions that cannot be ignored even if unrecognized
                                                                                                          Comments

                                                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                          Control0..*
                                                                                                          TypeExtension
                                                                                                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                                                          Summarytrue
                                                                                                          Requirements

                                                                                                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                                                          Alternate Namesextensions, user content, modifiers
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                          158. MedicationRequest.dispenseRequest.initialFill.quantity
                                                                                                          Definition

                                                                                                          The amount or quantity to provide as part of the first dispense.

                                                                                                          ShortFirst fill quantity
                                                                                                          Control0..1
                                                                                                          TypeQuantity(SimpleQuantity)
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          160. MedicationRequest.dispenseRequest.initialFill.duration
                                                                                                          Definition

                                                                                                          The length of time that the first dispense is expected to last.

                                                                                                          ShortFirst fill duration
                                                                                                          Control0..1
                                                                                                          TypeDuration
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          162. MedicationRequest.dispenseRequest.dispenseInterval
                                                                                                          Definition

                                                                                                          The minimum period of time that must occur between dispenses of the medication.

                                                                                                          ShortMinimum period of time between dispenses
                                                                                                          Control0..1
                                                                                                          TypeDuration
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          164. MedicationRequest.dispenseRequest.validityPeriod
                                                                                                          Definition

                                                                                                          This indicates the validity period of a prescription (stale dating the Prescription).

                                                                                                          ShortTime period supply is authorized for
                                                                                                          Comments

                                                                                                          It reflects the prescribers' perspective for the validity of the prescription. Dispenses must not be made against the prescription outside of this period. The lower-bound of the Dispensing Window signifies the earliest date that the prescription can be filled for the first time. If an upper-bound is not specified then the Prescription is open-ended or will default to a stale-date based on regulations.

                                                                                                          Control0..1
                                                                                                          TypePeriod
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Requirements

                                                                                                          Indicates when the Prescription becomes valid, and when it ceases to be a dispensable Prescription.

                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          166. MedicationRequest.dispenseRequest.numberOfRepeatsAllowed
                                                                                                          Definition

                                                                                                          An integer indicating the number of times, in addition to the original dispense, (aka refills or repeats) that the patient can receive the prescribed medication. Usage Notes: This integer does not include the original order dispense. This means that if an order indicates dispense 30 tablets plus "3 repeats", then the order can be dispensed a total of 4 times and the patient can receive a total of 120 tablets. A prescriber may explicitly say that zero refills are permitted after the initial dispense.

                                                                                                          ShortMaximum repeats authorised
                                                                                                          Comments

                                                                                                          If displaying "number of authorized fills", add 1 to this number.

                                                                                                          Control0..1
                                                                                                          TypeunsignedInt
                                                                                                          Is Modifierfalse
                                                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          168. MedicationRequest.dispenseRequest.quantity
                                                                                                          Definition

                                                                                                          The amount that is to be dispensed for one fill.

                                                                                                          ShortAmount of medication to supply per dispense
                                                                                                          Control0..1
                                                                                                          TypeQuantity(SimpleQuantity)
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          170. MedicationRequest.dispenseRequest.expectedSupplyDuration
                                                                                                          Definition

                                                                                                          Identifies the period time over which the supplied product is expected to be used, or the length of time the dispense is expected to last.

                                                                                                          ShortNumber of days supply per dispense
                                                                                                          Comments

                                                                                                          In some situations, this attribute may be used instead of quantity to identify the amount supplied by how long it is expected to last, rather than the physical quantity issued, e.g. 90 days supply of medication (based on an ordered dosage). When possible, it is always better to specify quantity, as this tends to be more precise. expectedSupplyDuration will always be an estimate that can be influenced by external factors.

                                                                                                          Control0..1
                                                                                                          TypeDuration
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          172. MedicationRequest.dispenseRequest.performer
                                                                                                          Definition

                                                                                                          Indicates the intended dispensing Organization specified by the prescriber.

                                                                                                          ShortIntended dispenser
                                                                                                          Control0..1
                                                                                                          TypeReference(Organization)
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          174. MedicationRequest.substitution
                                                                                                          Definition

                                                                                                          Indicates whether or not substitution can or should be part of the dispense. In some cases, substitution must happen, in other cases substitution must not happen. This block explains the prescriber's intent. If nothing is specified substitution may be done.

                                                                                                          ShortBrand substitution details
                                                                                                          Control0..1
                                                                                                          TypeBackboneElement
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          176. MedicationRequest.substitution.id
                                                                                                          Definition

                                                                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                                          ShortUnique id for inter-element referencing
                                                                                                          Control0..1
                                                                                                          Typestring
                                                                                                          Is Modifierfalse
                                                                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                                                                          Summaryfalse
                                                                                                          178. MedicationRequest.substitution.extension
                                                                                                          Definition

                                                                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                                          ShortAdditional content defined by implementations
                                                                                                          Comments

                                                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                          Control0..*
                                                                                                          TypeExtension
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Alternate Namesextensions, user content
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                          180. MedicationRequest.substitution.modifierExtension
                                                                                                          Definition

                                                                                                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                                                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                                                          ShortExtensions that cannot be ignored even if unrecognized
                                                                                                          Comments

                                                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                          Control0..*
                                                                                                          TypeExtension
                                                                                                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                                                          Summarytrue
                                                                                                          Requirements

                                                                                                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                                                          Alternate Namesextensions, user content, modifiers
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                          182. MedicationRequest.substitution.allowed[x]
                                                                                                          Definition

                                                                                                          True if the prescriber allows a different drug to be dispensed from what was prescribed.

                                                                                                          ShortBrand substitution flag
                                                                                                          Comments

                                                                                                          This element is labeled as a modifier because whether substitution is allow or not, it cannot be ignored.

                                                                                                          Control1..1
                                                                                                          BindingFor example codes, see ActSubstanceAdminSubstitutionCode
                                                                                                          (example to http://terminology.hl7.org/ValueSet/v3-ActSubstanceAdminSubstitutionCode)

                                                                                                          Identifies the type of substitution allowed.

                                                                                                          TypeChoice of: boolean, CodeableConcept
                                                                                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                                                          Is Modifierfalse
                                                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          184. MedicationRequest.substitution.reason
                                                                                                          Definition

                                                                                                          Indicates the reason for the substitution, or why substitution must or must not be performed.

                                                                                                          ShortWhy should (not) substitution be made
                                                                                                          Control0..1
                                                                                                          BindingThe codes SHOULD be taken from Medicine Substitution Reason .
                                                                                                          (preferred to https://healthterminologies.gov.au/fhir/ValueSet/medicine-substitution-reason-1)
                                                                                                          TypeCodeableConcept
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          186. MedicationRequest.priorPrescription
                                                                                                          Definition

                                                                                                          A link to a resource representing an earlier order related order or prescription.

                                                                                                          ShortAn order/prescription that is being replaced
                                                                                                          Control0..1
                                                                                                          TypeReference(MedicationRequest)
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          188. MedicationRequest.detectedIssue
                                                                                                          Definition

                                                                                                          Indicates an actual or potential clinical issue with or between one or more active or proposed clinical actions for a patient; e.g. Drug-drug interaction, duplicate therapy, dosage alert etc.

                                                                                                          ShortClinical Issue with action
                                                                                                          Comments

                                                                                                          This element can include a detected issue that has been identified either by a decision support system or by a clinician and may include information on the steps that were taken to address the issue.

                                                                                                          Control0..*
                                                                                                          TypeReference(DetectedIssue)
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Alternate NamesContraindication, Drug Utilization Review (DUR), Alert
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                          190. MedicationRequest.eventHistory
                                                                                                          Definition

                                                                                                          Links to Provenance records for past versions of this resource or fulfilling request or event resources that identify key state transitions or updates that are likely to be relevant to a user looking at the current version of the resource.

                                                                                                          ShortA list of events of interest in the lifecycle
                                                                                                          Comments

                                                                                                          This might not include provenances for all versions of the request – only those deemed “relevant” or important. This SHALL NOT include the provenance associated with this current version of the resource. (If that provenance is deemed to be a “relevant” change, it will need to be added as part of a later update. Until then, it can be queried directly as the provenance that points to this version using _revinclude All Provenances should have some historical version of this Request as their subject.).

                                                                                                          Control0..*
                                                                                                          TypeReference(Provenance)
                                                                                                          Is Modifierfalse
                                                                                                          Summaryfalse
                                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))