AU Core Implementation Guide
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This page is part of the Australian Core IG (v0.2.1-preview: AU Core) based on FHIR R4. For a full list of available versions, see the Directory of published versions

Resource Profile: AUCoreMedicationStatement - Detailed Descriptions

Page standards status: Draft Maturity Level: 0

Definitions for the au-core-medicationstatement resource profile.

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

1. MedicationStatement
2. MedicationStatement.basedOn
TypeReference(AUCoreMedicationRequest|AUCoreCarePlan|AUCoreServiceRequest|MedicationRequest|CarePlan|ServiceRequest)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
3. MedicationStatement.status
Must Supporttrue
4. MedicationStatement.statusReason
Must Supporttrue
5. MedicationStatement.category
Must Supporttrue
6. MedicationStatement.medication[x]
[x] NoteSee Choice of Data Types for further information about how to use [x]
Must Supporttrue
SlicingThis element introduces a set of slices on MedicationStatement.medication[x]. The slices are and , and can be differentiated using the following discriminators:
  • @
7. MedicationStatement.medication[x]:medicationCodeableConcept
SliceNamemedicationCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
8. MedicationStatement.medication[x]:medicationCodeableConcept.coding
SlicingThis element introduces a set of slices on MedicationStatement.medication[x].coding. The slices are and , and can be differentiated using the following discriminators:
  • @
9. MedicationStatement.medication[x]:medicationCodeableConcept.coding:pbs
SliceNamepbs
Must Supporttrue
10. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt
SliceNameamt
Must Supporttrue
11. MedicationStatement.medication[x]:medicationReference
SliceNamemedicationReference
TypeReference(AUMedication)
[x] NoteSee Choice of Data Types for further information about how to use [x]
12. MedicationStatement.subject
TypeReference(AUCorePatient|Patient|Group)
Must Supporttrue
13. MedicationStatement.context
TypeReference(AUCoreEncounter|Encounter|EpisodeOfCare)
Must Supporttrue
14. MedicationStatement.effective[x]
[x] NoteSee Choice of Data Types for further information about how to use [x]
Must Supporttrue
15. MedicationStatement.dateAsserted
Must Supporttrue
16. MedicationStatement.informationSource
TypeReference(AUCorePatient|AUCorePractitioner|AUCorePractitionerRole|AUCoreRelatedPerson|Patient|Practitioner|PractitionerRole|RelatedPerson|Organization)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
17. MedicationStatement.reasonCode
Must Supporttrue
18. MedicationStatement.note
Must Supporttrue
19. MedicationStatement.dosage
Control This element is affected by the following invariants: au-core-mst-03
Must Supporttrue
InvariantsDefined on this element
au-core-mst-03: If present, the dosage shall at least have text or patient instructions (: text.exists() or patientInstruction.exists())

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

1. MedicationStatement
Definition

A record of a medication that is being consumed by a patient. A MedicationStatement may indicate that the patient may be taking the medication now or has taken the medication in the past or will be taking the medication in the future. The source of this information can be the patient, significant other (such as a family member or spouse), or a clinician. A common scenario where this information is captured is during the history taking process during a patient visit or stay. The medication information may come from sources such as the patient's memory, from a prescription bottle, or from a list of medications the patient, clinician or other party maintains.

The primary difference between a medication statement and a medication administration is that the medication administration has complete administration information and is based on actual administration information from the person who administered the medication. A medication statement is often, if not always, less specific. There is no required date/time when the medication was administered, in fact we only know that a source has reported the patient is taking this medication, where details such as time, quantity, or rate or even medication product may be incomplete or missing or less precise. As stated earlier, the medication statement information may come from the patient's memory, from a prescription bottle or from a list of medications the patient, clinician or other party maintains. Medication administration is more formal and is not missing detailed information.

Control0..*
Summaryfalse
Comments

When interpreting a medicationStatement, the value of the status and NotTaken needed to be considered: MedicationStatement.status + MedicationStatement.wasNotTaken Status=Active + NotTaken=T = Not currently taking Status=Completed + NotTaken=T = Not taken in the past Status=Intended + NotTaken=T = No intention of taking Status=Active + NotTaken=F = Taking, but not as prescribed Status=Active + NotTaken=F = Taking Status=Intended +NotTaken= F = Will be taking (not started) Status=Completed + NotTaken=F = Taken in past Status=In Error + NotTaken=N/A = In Error.

InvariantsDefined on this element
dom-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. MedicationStatement.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.

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

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
3. MedicationStatement.extension:longTerm
SliceNamelongTerm
Definition

Indicator of long term use of a medication.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(MedicationLongTerm) (Extension Type: boolean)
InvariantsDefined on this element
ele-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())
4. MedicationStatement.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).

Control0..*
TypeExtension
Is Modifiertrue
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
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.

InvariantsDefined on this element
ele-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())
5. MedicationStatement.basedOn
Definition

A plan, proposal or order that is fulfilled in whole or in part by this event.

Control0..*
TypeReference(AUCoreMedicationRequest|AUCoreCarePlan|AUCoreServiceRequest|MedicationRequest|CarePlan|ServiceRequest)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

Allows tracing of authorization for the event and tracking whether proposals/recommendations were acted upon.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
6. MedicationStatement.status
Definition

A code representing the patient or other source's judgment about the state of the medication used that this statement is about. Generally, this will be active or completed.

Control1..1
BindingThe codes SHALL be taken from Medication Status Codes

A coded concept indicating the current status of a MedicationStatement.

Typecode
Is Modifiertrue
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Comments

MedicationStatement is a statement at a point in time. The status is only representative at the point when it was asserted. The value set for MedicationStatement.status contains codes that assert the status of the use of the medication by the patient (for example, stopped or on hold) as well as codes that assert the status of the medication statement itself (for example, entered in error).

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

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
7. MedicationStatement.statusReason
Definition

Captures the reason for the current state of the MedicationStatement.

Control0..*
BindingFor example codes, see SNOMEDCTDrugTherapyStatusCodes

A coded concept indicating the reason for the status of the statement.

TypeCodeableConcept
Must Supporttrue
Summaryfalse
Comments

This is generally only used for "exception" statuses such as "not-taken", "on-hold", "cancelled" or "entered-in-error". The reason for performing the event at all is captured in reasonCode, not here.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
8. MedicationStatement.category
Definition

Indicates where the medication is expected to be consumed or administered.

Control0..1
BindingThe codes SHOULD be taken from Medication usage category codes

A coded concept identifying where the medication included in the MedicationStatement is expected to be consumed or administered.

TypeCodeableConcept
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
9. MedicationStatement.medication[x]
Definition

Identifies the medication being administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

Control1..1
BindingFor example codes, see SNOMEDCTMedicationCodes

A coded concept identifying the substance or product being taken.

TypeChoice of: CodeableConcept, Reference(Medication)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
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, then you must reference the Medication resource.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on MedicationStatement.medication[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
10. MedicationStatement.medication[x]:medicationCodeableConcept
SliceNamemedicationCodeableConcept
Definition

Identifies the medication being administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

Control01..1
BindingFor example codes, see SNOMEDCTMedicationCodes

A coded concept identifying the substance or product being taken.

TypeChoice of: CodeableConcept, Reference(Medication)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Summarytrue
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, then you must reference the Medication resource.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
11. MedicationStatement.medication[x]:medicationCodeableConcept.coding
Definition

A reference to a code defined by a terminology system.

Control0..*
TypeCoding
Summarytrue
Requirements

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

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on MedicationStatement.medication[x].coding. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ system
12. MedicationStatement.medication[x]:medicationCodeableConcept.coding:pbs
SliceNamepbs
Definition

A reference to a code defined by a terminology system.

Control0..*
BindingThe codes SHOULD be taken from PBS Item CodesFor codes, see (unbound)
TypeCoding
Must Supporttrue
Summarytrue
Requirements

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

Comments

PBS code from http://pbs.gov.au/code/item. Use of PBS as a code to refer to a type of medication, this excludes implication of context based on the PBS code. Where context is to be implied or stated PBS code needs to be associated with recording a prescription (MedicationRequest) or dispense record (MedicationDispense).

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
13. MedicationStatement.medication[x]:medicationCodeableConcept.coding:pbs.system
Definition

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

Control10..1
Typeuri
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.

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.

Fixed Valuehttp://pbs.gov.au/code/item
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
14. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin
SliceNamegtin
Definition

A reference to a code defined by a terminology system.

Control0..*
BindingThe codes SHOULD be taken from GTINFor codes, see (unbound)
TypeCoding
Summarytrue
Requirements

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

Comments

GTIN value from http://www.gs1.org/gtin.

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
15. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.system
Definition

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

Control10..1
Typeuri
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.

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.

Fixed Valuehttp://www.gs1.org/gtin
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
16. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt
SliceNameamt
Definition

A reference to a code defined by a terminology system.

Control0..*
BindingThe codes SHOULD be taken from https://healthterminologies.gov.au/fhir/ValueSet/australian-medication-1For codes, see (unbound)
TypeCoding
Must Supporttrue
Summarytrue
Requirements

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

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
17. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt.extension:medicationClass
SliceNamemedicationClass
Definition

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

Control0..1
TypeExtension(MedicationType) (Extension Type: Coding)
Summaryfalse
InvariantsDefined on this element
ele-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. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt.system
Definition

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

Control10..1
Typeuri
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.

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.

Fixed Valuehttp://snomed.info/sct
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
19. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage
SliceNamemimsPackage
Definition

A reference to a code defined by a terminology system.

Control0..1*
BindingThe codes SHOULD be taken from MIMSFor codes, see (unbound)
TypeCoding
Summarytrue
Requirements

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

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
20. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.system
Definition

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

Control10..1
Typeuri
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.

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.

Fixed Valuehttp://www.mims.com.au/codes
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
21. MedicationStatement.medication[x]:medicationReference
SliceNamemedicationReference
Definition

Identifies the medication being administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

Control01..1
TypeChoice of: Reference(AUMedication|Medication), CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Summarytrue
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, then you must reference the Medication resource.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
22. MedicationStatement.subject
Definition

The person, animal or group who is/was taking the medication.

Control1..1
TypeReference(AUCorePatient|Patient|Group)
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
23. MedicationStatement.context
Definition

The encounter or episode of care that establishes the context for this MedicationStatement.

Control0..1
TypeReference(AUCoreEncounter|Encounter|EpisodeOfCare)
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
24. MedicationStatement.effective[x]
Definition

The interval of time during which it is being asserted that the patient is/was/will be taking the medication (or was not taking, when the MedicationStatement.taken element is No).

Control0..1
TypeChoice of: dateTime, Period
[x] NoteSee Choice of Data Types for further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Comments

This attribute reflects the period over which the patient consumed the medication and is expected to be populated on the majority of Medication Statements. If the medication is still being taken at the time the statement is recorded, the "end" date will be omitted. The date/time attribute supports a variety of dates - year, year/month and exact date. If something more than this is required, this should be conveyed as text.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
25. MedicationStatement.dateAsserted
Definition

The date when the medication statement was asserted by the information source.

Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
26. MedicationStatement.informationSource
Definition

The person or organization that provided the information about the taking of this medication. Note: Use derivedFrom when a MedicationStatement is derived from other resources, e.g. Claim or MedicationRequest.

Control0..1
TypeReference(AUCorePatient|AUCorePractitioner|AUCorePractitionerRole|AUCoreRelatedPerson|Patient|Practitioner|PractitionerRole|RelatedPerson|Organization)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summaryfalse
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
27. MedicationStatement.reasonCode
Definition

A reason for why the medication is being/was taken.

Control0..*
BindingThe codes SHOULD be taken from https://healthterminologies.gov.au/fhir/ValueSet/medication-reason-taken-1For example codes, see Condition/Problem/DiagnosisCodes
TypeCodeableConcept
Must Supporttrue
Summaryfalse
Comments

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

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
28. MedicationStatement.note
Definition

Provides extra information about the medication statement that is not conveyed by the other attributes.

Control0..*
TypeAnnotation
Must Supporttrue
Summaryfalse
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
29. MedicationStatement.dosage
Definition

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

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

Control0..* This element is affected by the following invariants: au-core-mst-03
TypeDosage(AUBaseDosage)
Must Supporttrue
Comments

The dates included in the dosage on a Medication Statement reflect the dates for a given dose. For example, "from November 1, 2016 to November 3, 2016, take one tablet daily and from November 4, 2016 to November 7, 2016, take two tablets daily." It is expected that this specificity may only be populated where the patient brings in their labeled container or where the Medication Statement is derived from a MedicationRequest.

InvariantsDefined on this element
au-core-mst-03: If present, the dosage shall at least have text or patient instructions (: text.exists() or patientInstruction.exists())
ele-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.

1. MedicationStatement
Definition

A record of a medication that is being consumed by a patient. A MedicationStatement may indicate that the patient may be taking the medication now or has taken the medication in the past or will be taking the medication in the future. The source of this information can be the patient, significant other (such as a family member or spouse), or a clinician. A common scenario where this information is captured is during the history taking process during a patient visit or stay. The medication information may come from sources such as the patient's memory, from a prescription bottle, or from a list of medications the patient, clinician or other party maintains.

The primary difference between a medication statement and a medication administration is that the medication administration has complete administration information and is based on actual administration information from the person who administered the medication. A medication statement is often, if not always, less specific. There is no required date/time when the medication was administered, in fact we only know that a source has reported the patient is taking this medication, where details such as time, quantity, or rate or even medication product may be incomplete or missing or less precise. As stated earlier, the medication statement information may come from the patient's memory, from a prescription bottle or from a list of medications the patient, clinician or other party maintains. Medication administration is more formal and is not missing detailed information.

Control0..*
Summaryfalse
Comments

When interpreting a medicationStatement, the value of the status and NotTaken needed to be considered: MedicationStatement.status + MedicationStatement.wasNotTaken Status=Active + NotTaken=T = Not currently taking Status=Completed + NotTaken=T = Not taken in the past Status=Intended + NotTaken=T = No intention of taking Status=Active + NotTaken=F = Taking, but not as prescribed Status=Active + NotTaken=F = Taking Status=Intended +NotTaken= F = Will be taking (not started) Status=Completed + NotTaken=F = Taken in past Status=In Error + NotTaken=N/A = In Error.

2. MedicationStatement.id
Definition

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

Control0..1
Typeid
Summarytrue
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.

3. MedicationStatement.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.

Control0..1
TypeMeta
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
4. MedicationStatement.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.

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

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
5. MedicationStatement.language
Definition

The base language in which the resource is written.

Control0..1
BindingThe codes SHOULD be taken from CommonLanguages A human language
Additional BindingsPurpose
AllLanguagesMax Binding
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
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).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
6. MedicationStatement.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.

Control0..1
TypeNarrative
Summaryfalse
Alternate Namesnarrative, html, xhtml, display
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
7. MedicationStatement.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.

Control0..*
TypeResource
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained 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.

8. MedicationStatement.extension
Definition

An Extension

Control0..*
TypeExtension
Summaryfalse
InvariantsDefined on this element
ele-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 MedicationStatement.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
9. MedicationStatement.extension:longTerm
SliceNamelongTerm
Definition

Indicator of long term use of a medication.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(MedicationLongTerm) (Extension Type: boolean)
InvariantsDefined on this element
ele-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())
10. MedicationStatement.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).

Control0..*
TypeExtension
Is Modifiertrue
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
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.

InvariantsDefined on this element
ele-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())
11. MedicationStatement.identifier
Definition

Identifiers associated with this Medication Statement 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.

NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
Summarytrue
Comments

This is a business identifier, not a resource identifier.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
12. MedicationStatement.basedOn
Definition

A plan, proposal or order that is fulfilled in whole or in part by this event.

Control0..*
TypeReference(AUCoreMedicationRequest|AUCoreCarePlan|AUCoreServiceRequest)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

Allows tracing of authorization for the event and tracking whether proposals/recommendations were acted upon.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
13. MedicationStatement.partOf
Definition

A larger event of which this particular event is a component or step.

Control0..*
TypeReference(MedicationAdministration|MedicationDispense|MedicationStatement|Procedure|Observation)
Summarytrue
Requirements

This should not be used when indicating which resource a MedicationStatement has been derived from. If that is the use case, then MedicationStatement.derivedFrom should be used.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
14. MedicationStatement.status
Definition

A code representing the patient or other source's judgment about the state of the medication used that this statement is about. Generally, this will be active or completed.

Control1..1
BindingThe codes SHALL be taken from Medication Status Codes A coded concept indicating the current status of a MedicationStatement
Typecode
Is Modifiertrue
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Comments

MedicationStatement is a statement at a point in time. The status is only representative at the point when it was asserted. The value set for MedicationStatement.status contains codes that assert the status of the use of the medication by the patient (for example, stopped or on hold) as well as codes that assert the status of the medication statement itself (for example, entered in error).

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

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
15. MedicationStatement.statusReason
Definition

Captures the reason for the current state of the MedicationStatement.

Control0..*
BindingFor example codes, see SNOMEDCTDrugTherapyStatusCodes A coded concept indicating the reason for the status of the statement
TypeCodeableConcept
Must Supporttrue
Summaryfalse
Comments

This is generally only used for "exception" statuses such as "not-taken", "on-hold", "cancelled" or "entered-in-error". The reason for performing the event at all is captured in reasonCode, not here.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
16. MedicationStatement.category
Definition

Indicates where the medication is expected to be consumed or administered.

Control0..1
BindingThe codes SHOULD be taken from Medication usage category codes A coded concept identifying where the medication included in the MedicationStatement is expected to be consumed or administered
TypeCodeableConcept
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
17. MedicationStatement.medication[x]
Definition

Identifies the medication being administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

Control1..1
BindingFor example codes, see SNOMEDCTMedicationCodes A coded concept identifying the substance or product being taken
TypeChoice of: CodeableConcept, Reference(Medication)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
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, then you must reference the Medication resource.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on MedicationStatement.medication[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
18. MedicationStatement.medication[x]:medicationCodeableConcept
SliceNamemedicationCodeableConcept
Definition

Identifies the medication being administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

Control0..1
BindingFor example codes, see SNOMEDCTMedicationCodes A coded concept identifying the substance or product being taken
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Summarytrue
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, then you must reference the Medication resource.

19. MedicationStatement.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.

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
20. MedicationStatement.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.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
ele-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 MedicationStatement.medication[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
21. MedicationStatement.medication[x]:medicationCodeableConcept.coding
Definition

A reference to a code defined by a terminology system.

Control0..*
TypeCoding
Summarytrue
Requirements

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

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on MedicationStatement.medication[x].coding. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ system
22. MedicationStatement.medication[x]:medicationCodeableConcept.coding:pbs
SliceNamepbs
Definition

A reference to a code defined by a terminology system.

Control0..*
BindingThe codes SHOULD be taken from PBS Item Codes
TypeCoding
Must Supporttrue
Summarytrue
Requirements

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

Comments

PBS code from http://pbs.gov.au/code/item. Use of PBS as a code to refer to a type of medication, this excludes implication of context based on the PBS code. Where context is to be implied or stated PBS code needs to be associated with recording a prescription (MedicationRequest) or dispense record (MedicationDispense).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
23. MedicationStatement.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.

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
24. MedicationStatement.medication[x]:medicationCodeableConcept.coding:pbs.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.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
ele-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 MedicationStatement.medication[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
25. MedicationStatement.medication[x]:medicationCodeableConcept.coding:pbs.system
Definition

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

Control1..1
Typeuri
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.

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.

Fixed Valuehttp://pbs.gov.au/code/item
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
26. MedicationStatement.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.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
27. MedicationStatement.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).

Control0..1
Typecode
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
28. MedicationStatement.medication[x]:medicationCodeableConcept.coding:pbs.display
Definition

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

Control0..1
Typestring
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
29. MedicationStatement.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).

Control0..1
Typeboolean
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.

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
30. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin
SliceNamegtin
Definition

A reference to a code defined by a terminology system.

Control0..*
BindingThe codes SHOULD be taken from GTIN
TypeCoding
Summarytrue
Requirements

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

Comments

GTIN value from http://www.gs1.org/gtin.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
31. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.id
Definition

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

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
32. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.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.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
ele-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 MedicationStatement.medication[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
33. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.system
Definition

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

Control1..1
Typeuri
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.

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.

Fixed Valuehttp://www.gs1.org/gtin
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
34. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.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.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
35. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.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).

Control0..1
Typecode
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
36. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.display
Definition

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

Control0..1
Typestring
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
37. MedicationStatement.medication[x]:medicationCodeableConcept.coding:gtin.userSelected
Definition

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

Control0..1
Typeboolean
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.

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
38. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt
SliceNameamt
Definition

A reference to a code defined by a terminology system.

Control0..*
BindingThe codes SHOULD be taken from https://healthterminologies.gov.au/fhir/ValueSet/australian-medication-1
TypeCoding
Must Supporttrue
Summarytrue
Requirements

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

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
39. MedicationStatement.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.

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
40. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt.extension
Definition

An Extension

Control0..*
TypeExtension
Summaryfalse
InvariantsDefined on this element
ele-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 MedicationStatement.medication[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
41. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt.extension:medicationClass
SliceNamemedicationClass
Definition

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

Control0..1
TypeExtension(MedicationType) (Extension Type: Coding)
Summaryfalse
InvariantsDefined on this element
ele-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())
42. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt.system
Definition

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

Control1..1
Typeuri
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.

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.

Fixed Valuehttp://snomed.info/sct
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
43. MedicationStatement.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.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
44. MedicationStatement.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).

Control0..1
Typecode
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
45. MedicationStatement.medication[x]:medicationCodeableConcept.coding:amt.display
Definition

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

Control0..1
Typestring
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
46. MedicationStatement.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).

Control0..1
Typeboolean
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.

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
47. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage
SliceNamemimsPackage
Definition

A reference to a code defined by a terminology system.

Control0..1
BindingThe codes SHOULD be taken from MIMS
TypeCoding
Summarytrue
Requirements

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

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
48. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.id
Definition

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

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
49. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.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.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
ele-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 MedicationStatement.medication[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
50. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.system
Definition

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

Control1..1
Typeuri
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.

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.

Fixed Valuehttp://www.mims.com.au/codes
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
51. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.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.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
52. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.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).

Control0..1
Typecode
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
53. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.display
Definition

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

Control0..1
Typestring
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
54. MedicationStatement.medication[x]:medicationCodeableConcept.coding:mimsPackage.userSelected
Definition

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

Control0..1
Typeboolean
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.

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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
55. MedicationStatement.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.

Control0..1
Typestring
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.

Comments

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

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
56. MedicationStatement.medication[x]:medicationReference
SliceNamemedicationReference
Definition

Identifies the medication being administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

Control0..1
TypeReference(AUMedication)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Summarytrue
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, then you must reference the Medication resource.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
57. MedicationStatement.subject
Definition

The person, animal or group who is/was taking the medication.

Control1..1
TypeReference(AUCorePatient)
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
58. MedicationStatement.context
Definition

The encounter or episode of care that establishes the context for this MedicationStatement.

Control0..1
TypeReference(AUCoreEncounter)
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
59. MedicationStatement.effective[x]
Definition

The interval of time during which it is being asserted that the patient is/was/will be taking the medication (or was not taking, when the MedicationStatement.taken element is No).

Control0..1
TypeChoice of: dateTime, Period
[x] NoteSee Choice of Data Types for further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Comments

This attribute reflects the period over which the patient consumed the medication and is expected to be populated on the majority of Medication Statements. If the medication is still being taken at the time the statement is recorded, the "end" date will be omitted. The date/time attribute supports a variety of dates - year, year/month and exact date. If something more than this is required, this should be conveyed as text.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
60. MedicationStatement.dateAsserted
Definition

The date when the medication statement was asserted by the information source.

Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
61. MedicationStatement.informationSource
Definition

The person or organization that provided the information about the taking of this medication. Note: Use derivedFrom when a MedicationStatement is derived from other resources, e.g. Claim or MedicationRequest.

Control0..1
TypeReference(AUCorePatient|AUCorePractitioner|AUCorePractitionerRole|AUCoreRelatedPerson)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summaryfalse
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
62. MedicationStatement.derivedFrom
Definition

Allows linking the MedicationStatement to the underlying MedicationRequest, or to other information that supports or is used to derive the MedicationStatement.

Control0..*
TypeReference(Resource)
Summaryfalse
Comments

Likely references would be to MedicationRequest, MedicationDispense, Claim, Observation or QuestionnaireAnswers. The most common use cases for deriving a MedicationStatement comes from creating a MedicationStatement from a MedicationRequest or from a lab observation or a claim. it should be noted that the amount of information that is available varies from the type resource that you derive the MedicationStatement from.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
63. MedicationStatement.reasonCode
Definition

A reason for why the medication is being/was taken.

Control0..*
BindingThe codes SHOULD be taken from https://healthterminologies.gov.au/fhir/ValueSet/medication-reason-taken-1
TypeCodeableConcept
Must Supporttrue
Summaryfalse
Comments

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

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
64. MedicationStatement.reasonReference
Definition

Condition or observation that supports why the medication is being/was taken.

Control0..*
TypeReference(Condition|Observation|DiagnosticReport)
Summaryfalse
Comments

This is a reference to a condition that is the reason why the medication is being/was taken. If only a code exists, use reasonForUseCode.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
65. MedicationStatement.note
Definition

Provides extra information about the medication statement that is not conveyed by the other attributes.

Control0..*
TypeAnnotation
Must Supporttrue
Summaryfalse
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
66. MedicationStatement.dosage
Definition

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

Control0..* This element is affected by the following invariants: au-core-mst-03
TypeDosage(AUBaseDosage)
Must Supporttrue
Comments

The dates included in the dosage on a Medication Statement reflect the dates for a given dose. For example, "from November 1, 2016 to November 3, 2016, take one tablet daily and from November 4, 2016 to November 7, 2016, take two tablets daily." It is expected that this specificity may only be populated where the patient brings in their labeled container or where the Medication Statement is derived from a MedicationRequest.

InvariantsDefined on this element
au-core-mst-03: If present, the dosage shall at least have text or patient instructions (: text.exists() or patientInstruction.exists())
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))