AU Core Implementation Guide
0.2.2-preview - Preview Australia flag

This page is part of the Australian Core IG (v0.2.2-preview: AU Core) based on FHIR R4. For a full list of available versions, see the Directory of published versions

Resource Profile: AUListCore - Detailed Descriptions

Page standards status: Draft Maturity Level: 0

Definitions for the au-core-list resource profile.

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

0. List
Invariantsau-core-lst-01: The list shall have at least a source or a source relating person (source.exists() or extension('http://hl7.org.au/fhir/StructureDefinition/author-related-person').exists())
2. List.extension
SlicingThis element introduces a set of slices on List.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
4. List.extension:sourceRelatedPerson
Slice NamesourceRelatedPerson
Definition

The related person responsible for deciding what the contents of the list were. This is the same as the author of the list.

ShortRelated person that defined the list contents (aka Author)
TypeExtension(Author as a RelatedPerson) (Extension Type: Reference(RelatedPerson))
Must Supporttrue
6. List.identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Must Supporttrue
8. List.status
Must Supporttrue
Pattern Valuecurrent
10. List.mode
Must Supporttrue
12. List.title
Must Supporttrue
14. List.code
Control1..?
Must Supporttrue
16. List.subject
Control1..?
TypeReference(AU Core Patient)
Must Supporttrue
18. List.encounter
TypeReference(AU Core Encounter)
Must Supporttrue
20. List.date
Control1..?
This element is affected by the following invariants: au-core-lst-02
Must Supporttrue
Invariantsau-core-lst-02: Date shall be at least to day (toString().length() >= 10)
22. List.source
TypeReference(AU Core Practitioner, AU Core PractitionerRole, AU Core Patient, AU Core System Device)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
24. List.note
Must Supporttrue
26. List.entry
Must Supporttrue
28. List.entry.extension:changeDescription
Slice NamechangeDescription
ShortDescription of the change item
Control0..1
TypeExtension(Change Description) (Extension Type: string)
30. List.entry.flag
Must Supporttrue
32. List.entry.item
Must Supporttrue
34. List.emptyReason
Must Supporttrue

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

0. List
Definition

A list is a curated collection of resources.

ShortA list is a curated collection of resources
Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesCollection, WorkingList, Organizer
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())
lst-1: A list can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
lst-2: The deleted flag can only be used if the mode of the list is "changes" (mode = 'changes' or entry.deleted.empty())
lst-3: An entry date can only be used if the mode of the list is "working" (mode = 'working' or entry.date.empty())
au-core-lst-01: The list shall have at least a source or a source relating person (source.exists() or extension('http://hl7.org.au/fhir/StructureDefinition/author-related-person').exists())
lst-1: A list can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
lst-2: The deleted flag can only be used if the mode of the list is "changes" (mode = 'changes' or entry.deleted.empty())
lst-3: An entry date can only be used if the mode of the list is "working" (mode = 'working' or entry.date.empty())
2. List.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. List.extension
Definition

An Extension


May be used to represent additional information that is not part of the basic definition of the resource. 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.

ShortExtensionAdditional 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 List.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
6. List.extension:sourceRelatedPerson
Slice NamesourceRelatedPerson
Definition

The related person responsible for deciding what the contents of the list were. This is the same as the author of the list.

ShortRelated person that defined the list contents (aka Author)
Control0..1
This element is affected by the following invariants: ele-1, au-core-lst-01
TypeExtension(Author as a RelatedPerson) (Extension Type: Reference(RelatedPerson))
Is Modifierfalse
Must Supporttrue
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())
8. List.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())
10. List.identifier
Definition

Identifier for the List assigned for business purposes outside the context of FHIR.

ShortBusiness identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. List.status
Definition

Indicates the current state of this list.

Shortcurrent | retired | entered-in-error
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 ListStatushttp://hl7.org/fhir/ValueSet/list-status|4.0.1

The current state of the list.

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
Summarytrue
Pattern Valuecurrent
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
14. List.mode
Definition

How this list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

Shortworking | snapshot | changes
Comments

This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

Control1..1
BindingThe codes SHALL be taken from ListModehttp://hl7.org/fhir/ValueSet/list-mode|4.0.1

The processing mode that applies to this list.

Typecode
Is Modifiertrue because If set to "changes", the list is considered incomplete, while the other two codes indicate the list is complete, which changes the understanding of the elements listed
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Lists are used in various ways, and it must be known in what way it is safe to use them.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. List.title
Definition

A label for the list assigned by the author.

ShortDescriptive name for the list
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Allows customization beyond just the code identifying the kind of list.

Example<br/><b>General</b>:Dr. Jane's Patients
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. List.code
Definition

This code defines the purpose of the list - why it was created.

ShortWhat the purpose of this list is
Comments

If there is no code, the purpose of the list is implied where it is used, such as in a document section using Document.section.code.

Control10..1
BindingFor example codes, see ExampleUseCodesForListhttp://hl7.org/fhir/ValueSet/list-example-codes

What the purpose of a list is.

TypeCodeableConcept
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

Lists often contain subsets of resources rather than an exhaustive list. The code identifies what type of subset is included.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. List.subject
Definition

The common subject (or patient) of the resources that are in the list if there is one.

ShortIf all resources have the same subject
Comments

Some purely arbitrary lists do not have a common subject, so this is optional.

Control10..1
TypeReference(AU Core Patient, Patient, Group, Device, Location)
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

The primary purpose of listing the subject explicitly is to help with finding the right list.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. List.encounter
Definition

The encounter that is the context in which this list was created.

ShortContext in which list created
Control0..1
TypeReference(AU Core Encounter, Encounter)
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. List.date
Definition

The date that the list was prepared.

ShortWhen the list was prepared
Comments

The actual important date is the date of currency of the resources that were summarized, but it is usually assumed that these are current when the preparation occurs.

Control10..1
This element is affected by the following invariants: au-core-lst-02
TypedateTime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Identifies how current the list is which affects relevance.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
au-core-lst-02: Date shall be at least to day (toString().length() >= 10)
26. List.source
Definition

The entity responsible for deciding what the contents of the list were. Where the list was created by a human, this is the same as the author of the list.

ShortWho and/or what defined the list contents (aka Author)
Comments

The primary source is the entity that made the decisions what items are in the list. This may be software or user.

Control0..1
This element is affected by the following invariants: au-core-lst-01
TypeReference(AU Core Practitioner, AU Core PractitionerRole, AU Core Patient, AU Core System Device, Practitioner, PractitionerRole, Patient, Device)
Is Modifierfalse
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

Allows follow-up as well as context.

Alternate NamesAuthor
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. List.note
Definition

Comments that apply to the overall list.

ShortComments about the list
Control0..*
TypeAnnotation
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. List.entry
Definition

Entries in this list.

ShortEntries in the list
Comments

If there are no entries in the list, an emptyReason SHOULD be provided.

Control0..*
This element is affected by the following invariants: lst-1
TypeBackboneElement
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
32. List.entry.extension:changeDescription
Slice NamechangeDescription
Definition

Description of a change including the reason for change.

ShortDescription of the change item
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Change Description) (Extension Type: string)
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())
34. List.entry.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())
36. List.entry.flag
Definition

The flag allows the system constructing the list to indicate the role and significance of the item in the list.

ShortStatus/Workflow information about this item
Comments

The flag can only be understood in the context of the List.code. If the flag means that the entry has actually been deleted from the list, the deleted element SHALL be true. Deleted can only be used if the List.mode is "changes".

Control0..1
BindingFor example codes, see PatientMedicineChangeTypeshttp://hl7.org/fhir/ValueSet/list-item-flag

Codes that provide further information about the reason and meaning of the item in the list.

TypeCodeableConcept
Is Modifierfalse
Must Supporttrue
Summaryfalse
Requirements

This field is present to support various clinical uses of lists, such as a discharge summary medication list, where flags specify whether the medication was added, modified, or deleted from the list.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
38. List.entry.deleted
Definition

True if this item is marked as deleted in the list.

ShortIf this item is actually marked as deleted
Comments

If the flag means that the entry has actually been deleted from the list, the deleted element SHALL be true. Both flag and deleted can only be used if the List.mode is "changes". A deleted entry should be displayed in narrative as deleted. This element is labeled as a modifier because it indicates that an item is (to be) no longer in the list.

Control0..1
This element is affected by the following invariants: lst-2
Typeboolean
Is Modifiertrue because If deleted is true, then the item included in the list isn't actually part of the list anymore
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
Requirements

The flag element may contain codes that an application processing the list does not understand. However there can be no ambiguity if a list item is actually marked as "deleted".

Meaning if MissingList items are generally only treated as deleted when this element explicitly carries a value of true. Systems SHOULD always populate this value when mode is 'changes'
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. List.entry.item
Definition

A reference to the actual resource from which data was derived.

ShortActual entry
Control1..1
TypeReference(Resource)
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
42. List.emptyReason
Definition

If the list is empty, why the list is empty.

ShortWhy list is empty
Comments

The various reasons for an empty list make a significant interpretation to its interpretation. Note that this code is for use when the entire list has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

Control0..1
This element is affected by the following invariants: lst-1
BindingThe codes SHOULD be taken from ListEmptyReasonshttp://hl7.org/fhir/ValueSet/list-empty-reason

If a list is empty, why it is empty.

TypeCodeableConcept
Is Modifierfalse
Must Supporttrue
Summaryfalse
Requirements

Allows capturing things like "none exist" or "not asked" which can be important for most lists.

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. List
Definition

A list is a curated collection of resources.

ShortA list is a curated collection of resources
Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesCollection, WorkingList, Organizer
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())
lst-1: A list can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
lst-2: The deleted flag can only be used if the mode of the list is "changes" (mode = 'changes' or entry.deleted.empty())
lst-3: An entry date can only be used if the mode of the list is "working" (mode = 'working' or entry.date.empty())
au-core-lst-01: The list shall have at least a source or a source relating person (source.exists() or extension('http://hl7.org.au/fhir/StructureDefinition/author-related-person').exists())
2. List.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. List.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. List.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. List.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

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. List.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. List.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. List.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 List.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
16. List.extension:sourceRelatedPerson
Slice NamesourceRelatedPerson
Definition

The related person responsible for deciding what the contents of the list were. This is the same as the author of the list.

ShortRelated person that defined the list contents (aka Author)
Control0..1
This element is affected by the following invariants: ele-1, au-core-lst-01
TypeExtension(Author as a RelatedPerson) (Extension Type: Reference(RelatedPerson))
Is Modifierfalse
Must Supporttrue
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. List.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. List.identifier
Definition

Identifier for the List assigned for business purposes outside the context of FHIR.

ShortBusiness identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. List.status
Definition

Indicates the current state of this list.

Shortcurrent | retired | entered-in-error
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 ListStatus

The current state of the list.

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
Summarytrue
Pattern Valuecurrent
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. List.mode
Definition

How this list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

Shortworking | snapshot | changes
Comments

This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

Control1..1
BindingThe codes SHALL be taken from ListMode

The processing mode that applies to this list.

Typecode
Is Modifiertrue because If set to &quot;changes&quot;, the list is considered incomplete, while the other two codes indicate the list is complete, which changes the understanding of the elements listed
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Lists are used in various ways, and it must be known in what way it is safe to use them.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
26. List.title
Definition

A label for the list assigned by the author.

ShortDescriptive name for the list
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Allows customization beyond just the code identifying the kind of list.

Example<br/><b>General</b>:Dr. Jane's Patients
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. List.code
Definition

This code defines the purpose of the list - why it was created.

ShortWhat the purpose of this list is
Comments

If there is no code, the purpose of the list is implied where it is used, such as in a document section using Document.section.code.

Control1..1
BindingFor example codes, see ExampleUseCodesForList

What the purpose of a list is.

TypeCodeableConcept
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

Lists often contain subsets of resources rather than an exhaustive list. The code identifies what type of subset is included.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. List.subject
Definition

The common subject (or patient) of the resources that are in the list if there is one.

ShortIf all resources have the same subject
Comments

Some purely arbitrary lists do not have a common subject, so this is optional.

Control1..1
TypeReference(AU Core Patient)
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

The primary purpose of listing the subject explicitly is to help with finding the right list.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
32. List.encounter
Definition

The encounter that is the context in which this list was created.

ShortContext in which list created
Control0..1
TypeReference(AU Core Encounter)
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
34. List.date
Definition

The date that the list was prepared.

ShortWhen the list was prepared
Comments

The actual important date is the date of currency of the resources that were summarized, but it is usually assumed that these are current when the preparation occurs.

Control1..1
This element is affected by the following invariants: au-core-lst-02
TypedateTime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Identifies how current the list is which affects relevance.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
au-core-lst-02: Date shall be at least to day (toString().length() >= 10)
36. List.source
Definition

The entity responsible for deciding what the contents of the list were. Where the list was created by a human, this is the same as the author of the list.

ShortWho and/or what defined the list contents (aka Author)
Comments

The primary source is the entity that made the decisions what items are in the list. This may be software or user.

Control0..1
This element is affected by the following invariants: au-core-lst-01
TypeReference(AU Core Practitioner, AU Core PractitionerRole, AU Core Patient, AU Core System Device)
Is Modifierfalse
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

Allows follow-up as well as context.

Alternate NamesAuthor
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
38. List.orderedBy
Definition

What order applies to the items in the list.

ShortWhat order the list has
Comments

Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order.

Control0..1
BindingThe codes SHOULD be taken from ListOrderCodes

What order applies to the items in a list.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Important for presentation and rendering. Lists may be sorted to place more important information first or to group related entries.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. List.note
Definition

Comments that apply to the overall list.

ShortComments about the list
Control0..*
TypeAnnotation
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
42. List.entry
Definition

Entries in this list.

ShortEntries in the list
Comments

If there are no entries in the list, an emptyReason SHOULD be provided.

Control0..*
This element is affected by the following invariants: lst-1
TypeBackboneElement
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. List.entry.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
46. List.entry.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 List.entry.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
48. List.entry.extension:changeDescription
Slice NamechangeDescription
Definition

Description of a change including the reason for change.

ShortDescription of the change item
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Change Description) (Extension Type: string)
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())
50. List.entry.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())
52. List.entry.flag
Definition

The flag allows the system constructing the list to indicate the role and significance of the item in the list.

ShortStatus/Workflow information about this item
Comments

The flag can only be understood in the context of the List.code. If the flag means that the entry has actually been deleted from the list, the deleted element SHALL be true. Deleted can only be used if the List.mode is "changes".

Control0..1
BindingFor example codes, see PatientMedicineChangeTypes

Codes that provide further information about the reason and meaning of the item in the list.

TypeCodeableConcept
Is Modifierfalse
Must Supporttrue
Summaryfalse
Requirements

This field is present to support various clinical uses of lists, such as a discharge summary medication list, where flags specify whether the medication was added, modified, or deleted from the list.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
54. List.entry.deleted
Definition

True if this item is marked as deleted in the list.

ShortIf this item is actually marked as deleted
Comments

If the flag means that the entry has actually been deleted from the list, the deleted element SHALL be true. Both flag and deleted can only be used if the List.mode is "changes". A deleted entry should be displayed in narrative as deleted. This element is labeled as a modifier because it indicates that an item is (to be) no longer in the list.

Control0..1
This element is affected by the following invariants: lst-2
Typeboolean
Is Modifiertrue because If deleted is true, then the item included in the list isn't actually part of the list anymore
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
Requirements

The flag element may contain codes that an application processing the list does not understand. However there can be no ambiguity if a list item is actually marked as "deleted".

Meaning if MissingList items are generally only treated as deleted when this element explicitly carries a value of true. Systems SHOULD always populate this value when mode is 'changes'
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
56. List.entry.date
Definition

When this item was added to the list.

ShortWhen item added to list
Control0..1
TypedateTime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
Requirements

The date may be significant for understanding the meaning of items in a working list.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
58. List.entry.item
Definition

A reference to the actual resource from which data was derived.

ShortActual entry
Control1..1
TypeReference(Resource)
Is Modifierfalse
Must Supporttrue
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
60. List.emptyReason
Definition

If the list is empty, why the list is empty.

ShortWhy list is empty
Comments

The various reasons for an empty list make a significant interpretation to its interpretation. Note that this code is for use when the entire list has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

Control0..1
This element is affected by the following invariants: lst-1
BindingThe codes SHOULD be taken from ListEmptyReasons

If a list is empty, why it is empty.

TypeCodeableConcept
Is Modifierfalse
Must Supporttrue
Summaryfalse
Requirements

Allows capturing things like "none exist" or "not asked" which can be important for most lists.

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