Australian Digital Health Agency FHIR Implementation Guide
1.2.0-ci-build - draft Australia flag

Australian Digital Health Agency FHIR Implementation Guide, published by Australian Digital Health Agency. This guide is not an authorized publication; it is the continuous build for version 1.2.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/AuDigitalHealth/ci-fhir-r4/ and changes regularly. See the Directory of published versions

Resource Profile: ADHAListMedicationUse - Detailed Descriptions

Draft as of 2024-09-12

Definitions for the dh-list-medication-use-1 resource profile.

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

0. List
Definition

A list of medicines at a point in time that describes medicine item use for an individual. The list may be partial, or complete, and may be a history or scoped to may be taking the medication now or has taken the medication in the past or will be taking the medication in the future.

ShortA list of medicine items for a patient at a point in time
2. List.code
BindingThe codes SHALL be taken from History Of Medication Use List Type .
(required to https://healthterminologies.gov.au/fhir/ValueSet/history-of-medication-use-list-type-1)
4. List.entry
ShortMedicine item information, may include change information
6. List.entry.extension:changeDescription
Slice NamechangeDescription
ShortDescription of the change to medicine item use
Control0..1
TypeExtension(Change Description) (Extension Type: string)
8. List.entry.flag
BindingThe codes SHALL be taken from Medicine Item Change from Event .
(required to https://healthterminologies.gov.au/fhir/ValueSet/medicine-item-change-event-2)
10. List.entry.item
TypeReference(ADHA Core MedicationStatement, AU Assertion of No Relevant Finding)

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

0. List
Definition

A list of medicines at a point in time that describes medicine item use for an individual. The list may be partial, or complete, and may be a history or scoped to may be taking the medication now or has taken the medication in the past or will be taking the medication in the future.


A list is a curated collection of resources.

ShortA list of medicine items for a patient at a point in timeA 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())
inv-dh-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())
inv-dh-lst-02: If present, a source shall at least have a reference or a valid identifier (source.exists() implies source.all($this.reference.exists() or $this.display.exists() or $this.identifier.where(system.count() + value.count() >1).exists()))
inv-dh-lst-03: If present, a source related person (author-related-person) shall at least have a reference or a valid identifier (extension('http://hl7.org.au/fhir/StructureDefinition/author-related-person').valueReference.reference.resolve().conformsTo('http://ns.electronichealth.net.au/fhir/StructureDefinition/dh-relatedperson-author-1').exists() or extension('http://hl7.org.au/fhir/StructureDefinition/author-related-person').valueReference.identifier.where(system.count() + value.count() >1).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: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, inv-dh-lst-01, inv-dh-lst-03
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())
6. 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())
8. 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()))
10. 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
(required to http://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()))
12. 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
(required to http://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
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()))
14. 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()))
16. 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
BindingThe codes SHALL be taken from For example codes, see History Of Medication Use List Type .http://hl7.org/fhir/ValueSet/list-example-codes
(required to https://healthterminologies.gov.au/fhir/ValueSet/history-of-medication-use-list-type-1)
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()))
18. 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
This element is affected by the following invariants: inv-dh-lst-04
TypeReference(ADHA 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()))
inv-dh-lst-04: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
20. List.encounter
Definition

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

ShortContext in which list created
Control0..1
TypeReference(ADHA 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()))
22. 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: inv-dh-lst-06
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()))
inv-dh-lst-06: Date shall be at least to day (toString().length() >= 10)
24. 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: inv-dh-lst-01, inv-dh-lst-02
TypeReference(ADHA Authoring PractitionerRole, ADHA Core Patient, ADHA 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()))
26. 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()))
28. List.entry
Definition

Entries in this list.

ShortMedicine item information, may include change informationEntries 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()))
inv-dh-lst-05: All observations shall conform to ADHA Simple Observation (item.resolve().where($this is Observation).exists() implies item.resolve().conformsTo('http://ns.electronichealth.net.au/fhir/StructureDefinition/dh-observation-simple-1'))
30. List.entry.extension:changeDescription
Slice NamechangeDescription
Definition

Description of a change including the reason for change.

ShortDescription of the change to medicine item use
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())
32. 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())
34. 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
BindingThe codes SHALL be taken from For example codes, see Medicine Item Change from Event .http://hl7.org/fhir/ValueSet/list-item-flag
(required to https://healthterminologies.gov.au/fhir/ValueSet/medicine-item-change-event-2)
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()))
36. 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()))
38. List.entry.item
Definition

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

ShortActual entry
Control1..1
This element is affected by the following invariants: inv-dh-lst-05
TypeReference(ADHA Core MedicationStatement, AU Assertion of No Relevant Finding, Resource)
Is Modifierfalse
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. List.entry.item.reference
Definition

A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

ShortLiteral reference, Relative, internal or absolute URL
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Control10..1
This element is affected by the following invariants: ref-1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
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 SHALL be taken from The codes SHOULD be taken from Non-Clinical Empty Reason .http://hl7.org/fhir/ValueSet/list-empty-reason
(required to https://healthterminologies.gov.au/fhir/ValueSet/non-clinical-empty-reason-2)
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 of medicines at a point in time that describes medicine item use for an individual. The list may be partial, or complete, and may be a history or scoped to may be taking the medication now or has taken the medication in the past or will be taking the medication in the future.

ShortA list of medicine items for a patient at a point in time
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())
inv-dh-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())
inv-dh-lst-02: If present, a source shall at least have a reference or a valid identifier (source.exists() implies source.all($this.reference.exists() or $this.display.exists() or $this.identifier.where(system.count() + value.count() >1).exists()))
inv-dh-lst-03: If present, a source related person (author-related-person) shall at least have a reference or a valid identifier (extension('http://hl7.org.au/fhir/StructureDefinition/author-related-person').valueReference.reference.resolve().conformsTo('http://ns.electronichealth.net.au/fhir/StructureDefinition/dh-relatedperson-author-1').exists() or extension('http://hl7.org.au/fhir/StructureDefinition/author-related-person').valueReference.identifier.where(system.count() + value.count() >1).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
(preferred to http://hl7.org/fhir/ValueSet/languages)

A human language.

Additional BindingsPurpose
AllLanguagesMax Binding
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. 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 areUnordered 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, inv-dh-lst-01, inv-dh-lst-03
    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
    (required to http://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()))
    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
    (required to http://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
    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
    BindingThe codes SHALL be taken from History Of Medication Use List Type .
    (required to https://healthterminologies.gov.au/fhir/ValueSet/history-of-medication-use-list-type-1)
    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
    This element is affected by the following invariants: inv-dh-lst-04
    TypeReference(ADHA 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()))
    inv-dh-lst-04: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
    32. List.encounter
    Definition

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

    ShortContext in which list created
    Control0..1
    TypeReference(ADHA 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: inv-dh-lst-06
    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()))
    inv-dh-lst-06: 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: inv-dh-lst-01, inv-dh-lst-02
    TypeReference(ADHA Authoring PractitionerRole, ADHA Core Patient, ADHA 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
    (preferred to http://hl7.org/fhir/ValueSet/list-order)

    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.

    ShortMedicine item information, may include change information
    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()))
    inv-dh-lst-05: All observations shall conform to ADHA Simple Observation (item.resolve().where($this is Observation).exists() implies item.resolve().conformsTo('http://ns.electronichealth.net.au/fhir/StructureDefinition/dh-observation-simple-1'))
    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 areUnordered 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 to medicine item use
      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
      BindingThe codes SHALL be taken from Medicine Item Change from Event .
      (required to https://healthterminologies.gov.au/fhir/ValueSet/medicine-item-change-event-2)
      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
      This element is affected by the following invariants: inv-dh-lst-05
      TypeReference(ADHA Core MedicationStatement, AU Assertion of No Relevant Finding)
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      60. List.entry.item.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
      62. List.entry.item.extension
      Definition

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

      ShortAdditional content defined by implementations
      Comments

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

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

        A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

        ShortLiteral reference, Relative, internal or absolute URL
        Comments

        Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

        Control1..1
        This element is affected by the following invariants: ref-1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        66. List.entry.item.type
        Definition

        The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

        The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

        ShortType the reference refers to (e.g. "Patient")
        Comments

        This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

        Control0..1
        BindingUnless not suitable, these codes SHALL be taken from ResourceType
        (extensible to http://hl7.org/fhir/ValueSet/resource-types)

        Aa resource (or, for logical models, the URI of the logical model).

        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        68. List.entry.item.identifier
        Definition

        An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

        ShortLogical reference, when literal reference is not known
        Comments

        When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

        When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

        Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

        Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..1
        TypeIdentifier
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        70. List.entry.item.display
        Definition

        Plain text narrative that identifies the resource in addition to the resource reference.

        ShortText alternative for the resource
        Comments

        This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        72. 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 SHALL be taken from Non-Clinical Empty Reason .
        (required to https://healthterminologies.gov.au/fhir/ValueSet/non-clinical-empty-reason-2)
        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()))