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: ADHACompositionPSML - Detailed Descriptions

Draft as of 2024-12-19

Definitions for the dh-composition-psml-1 resource profile.

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

0. Composition
Definition

A document that describes a patient's medicine item use at a point in time as an outcome from a practitioner medicines review. 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. The document may contain information about an individual's allergies.

ShortPharmacist Shared Medicines List
2. Composition.type
Pattern Value{
  "coding" : [{
    "system" : "http://loinc.org",
    "code" : "56445-0"
  }]
}
4. Composition.author
TypeReference(ADHA Authoring PractitionerRole)
6. Composition.section
SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • pattern @ code
  • 8. Composition.section:medicinesList
    Slice NamemedicinesList
    Definition

    A list of medicines for an individual at a point in time from a practitioner medicines review. 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.

    ShortMedicines list from practitioner medicines review
    10. Composition.section:medicinesList.entry
    ShortMedicines list
    TypeReference(ADHA Practitioner Medicine Review List, http://hl7.org.au/fhir/core/StructureDefinition/au-core-norelevantfinding)

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

    0. Composition
    Definition

    A document that describes a patient's medicine item use at a point in time as an outcome from a practitioner medicines review. 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. The document may contain information about an individual's allergies.


    A set of healthcare-related information that is assembled together into a single logical package that provides a single coherent statement of meaning, establishes its own context and that has clinical attestation with regard to who is making the statement. A Composition defines the structure and narrative content necessary for a document. However, a Composition alone does not constitute a document. Rather, the Composition must be the first entry in a Bundle where Bundle.type=document, and any other resources referenced from Composition must be included as subsequent entries in the Bundle (for example Patient, Practitioner, Encounter, etc.).

    ShortPharmacist Shared Medicines ListA set of resources composed into a single coherent clinical statement with clinical attestation
    Comments

    While the focus of this specification is on patient-specific clinical statements, this resource can also apply to other healthcare-related statements such as study protocol designs, healthcare invoices and other activities that are not necessarily patient-specific or clinical.

    Control0..*
    Is Modifierfalse
    Summaryfalse
    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())
    inv-dh-doc-01: If present, an information recipient shall at least have a reference, an identifier or a display (informationRecipient.exists() implies informationRecipient.all($this.reference.exists() or $this.identifier.exists() or $this.display.exists()))
    inv-dh-doc-02: Sections shall be unique by code (section.select(code.coding.code).isDistinct())
    2. Composition.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. Composition.extension:informationRecipient
    Slice NameinformationRecipient
    Definition

    A recipient who should receive a copy of the composition. A recipient is an entity to whom a copy of the composition is directed at the time of authoring of the composition.

    ShortInformation recipient
    Control0..*
    This element is affected by the following invariants: ele-1, inv-dh-doc-01
    TypeExtension(Information Recipient) (Extension Type: Reference(Practitioner, Device, Patient, RelatedPerson, PractitionerRole, Organization))
    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. Composition.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. Composition.identifier
    Definition

    A version-independent identifier for the Composition. This identifier stays constant as the composition is changed over time.

    ShortVersion-independent identifier for the Composition
    Comments

    Similar to ClinicalDocument/setId in CDA. See discussion in resource definition for how these relate.

    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control10..1
    TypeIdentifier
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Composition.status
    Definition

    The workflow/clinical status of this composition. The status is a marker for the clinical standing of the document.

    Shortpreliminary | final | amended | entered-in-error
    Comments

    If a composition is marked as withdrawn, the compositions/documents in the series, or data from the composition or document series, should never be displayed to a user without being clearly marked as untrustworthy. The flag "entered-in-error" is why this element is labeled as a modifier of other elements.

    Some reporting work flows require that the original narrative of a final document never be altered; instead, only new narrative can be added. The composition resource has no explicit status for explicitly noting whether this business rule is in effect. This would be handled by an extension if required.

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

    The workflow/clinical status of the composition.

    Typecode
    Is Modifiertrue because This element is labelled 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
    Requirements

    Need to be able to mark interim, amended, or withdrawn compositions or documents.

    Pattern Valuefinal
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Composition.type
    Definition

    Specifies the particular kind of composition (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the composition.

    ShortDocument sub typeKind of composition (LOINC if possible)
    Comments

    For Composition type, LOINC is ubiquitous and strongly endorsed by HL7. Most implementation guides will require a specific LOINC code, or use LOINC as an extensible binding.

    Control1..1
    BindingUnless not suitable, these codes SHALL be taken from The codes SHOULD be taken from History Of Medication Use List Type .http://hl7.org/fhir/ValueSet/doc-typecodes
    (extensible to https://healthterminologies.gov.au/fhir/ValueSet/history-of-medication-use-list-type-1)
    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

    Key metadata element describing the composition, used in searching/filtering.

    Pattern Value{
      "coding" : [{
        "system" : "http://loinc.org",
        "code" : "56445-0"
      }]
    }
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    14. Composition.category
    Definition

    A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

    ShortCategorization of Composition
    Comments

    This is a metadata field from XDS/MHD.

    Control10..*
    BindingUnless not suitable, these codes SHALL be taken from For example codes, see My Health Record Record Class .http://hl7.org/fhir/ValueSet/document-classcodes
    (extensible to https://healthterminologies.gov.au/fhir/ValueSet/mhr-record-class-1)
    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

    Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    SlicingThis element introduces a set of slices on Composition.category. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • pattern @ $this
    • 16. Composition.category:ms
      Slice Namems
      Definition

      A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

      ShortMedication summaryCategorization of Composition
      Comments

      This is a metadata field from XDS/MHD.

      Control10..1*
      BindingUnless not suitable, these codes SHALL be taken from For example codes, see My Health Record Record Class .http://hl7.org/fhir/ValueSet/document-classcodes
      (extensible to https://healthterminologies.gov.au/fhir/ValueSet/mhr-record-class-1)
      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

      Pattern Value{
        "coding" : [{
          "system" : "http://loinc.org",
          "code" : "56445-0"
        }]
      }
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      18. Composition.subject
      Definition

      Who or what the composition is about. The composition can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of livestock, or a set of patients that share a common exposure).

      ShortWho and/or what the composition is about
      Comments

      For clinical documents, this is usually the patient.

      Control10..1
      This element is affected by the following invariants: inv-dh-doc-03
      TypeReference(ADHA Core Patient, Resource)
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Essential metadata for searching for the composition. Identifies who and/or what the composition/document is about.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-dh-doc-03: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
      20. Composition.encounter
      Definition

      Describes the clinical encounter or type of care this documentation is associated with.

      ShortContext of the Composition
      Control0..1
      TypeReference(ADHA Core Encounter, Encounter)
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Provides context for the composition and supports searching.

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

      The composition editing time, when the composition was last logically changed by the author.

      ShortComposition editing time
      Comments

      The Last Modified Date on the composition may be after the date of the document was attested without being changed.

      Control1..1
      This element is affected by the following invariants: inv-dh-doc-07
      TypedateTime
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.


      dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-dh-doc-07: Date shall be at least to day (toString().length() >= 10)
      24. Composition.author
      Definition

      Identifies who is responsible for the information in the composition, not necessarily who typed it in.

      ShortWho and/or what authored the composition
      Control1..*
      This element is affected by the following invariants: inv-dh-doc-04
      TypeReference(ADHA Authoring PractitionerRole, Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Identifies who is responsible for the content.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-dh-doc-04: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
      26. Composition.title
      Definition

      Official human-readable label for the composition.

      ShortHuman Readable name/title
      Comments

      For many compositions, the title is the same as the text or a display name of Composition.type (e.g. a "consultation" or "progress note"). Note that CDA does not make title mandatory, but there are no known cases where it is useful for title to be omitted, so it is mandatory here. Feedback on this requirement is welcome during the trial use period.

      Control1..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      28. Composition.confidentiality
      Definition

      The code specifying the level of confidentiality of the Composition.

      ShortAs defined by affinity domain
      Comments

      The exact use of this element, and enforcement and issues related to highly sensitive documents are out of scope for the base specification, and delegated to implementation profiles (see security section). This element is labeled as a modifier because highly confidential documents must not be treated as if they are not.

      Control0..01
      BindingThe codes SHALL be taken from v3.ConfidentialityClassification (2014-03-26)http://terminology.hl7.org/ValueSet/v3-ConfidentialityClassification|2014-03-26
      (required to http://terminology.hl7.org/ValueSet/v3-ConfidentialityClassification|2014-03-26)

      Codes specifying the level of confidentiality of the composition.

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

      A participant who has attested to the accuracy of the composition/document.

      ShortAttests to accuracy of composition
      Comments

      Only list each attester once.

      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Requirements

      Identifies responsibility for the accuracy of the composition content.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-dh-doc-05: The party shall at least have a reference or a valid identifier (party.reference.exists() or party.identifier.where(system.count() + value.count() >1).exists())
      32. Composition.attester.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. Composition.attester.mode
      Definition

      The type of attestation the authenticator offers.

      Shortpersonal | professional | legal | official
      Control1..1
      BindingThe codes SHALL be taken from CompositionAttestationModehttp://hl7.org/fhir/ValueSet/composition-attestation-mode|4.0.1
      (required to http://hl7.org/fhir/ValueSet/composition-attestation-mode|4.0.1)

      The way in which a person authenticated a composition.

      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summaryfalse
      Requirements

      Indicates the level of authority of the attestation.

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

      When the composition was attested by the party.

      ShortWhen the composition was attested
      Control10..1
      TypedateTime
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summaryfalse
      Requirements

      Identifies when the information in the composition was deemed accurate. (Things may have changed since then.).

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

      Who attested the composition in the specified way.

      ShortWho attested the composition
      Control10..1
      This element is affected by the following invariants: inv-dh-doc-05
      TypeReference(ADHA Authoring PractitionerRole, ADHA Core Patient, ADHA Authoring RelatedPerson, ADHA Core Organization, Patient, RelatedPerson, Practitioner, PractitionerRole, Organization)
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      Summaryfalse
      Requirements

      Identifies who has taken on the responsibility for accuracy of the composition content.

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

      Identifies the organization or group who is responsible for ongoing maintenance of and access to the composition/document information.

      ShortOrganization which maintains the composition
      Comments

      This is useful when documents are derived from a composition - provides guidance for how to get the latest version of the document. This is optional because this is sometimes not known by the authoring system, and can be inferred by context. However, it is important that this information be known when working with a derived document, so providing a custodian is encouraged.

      Control10..1
      This element is affected by the following invariants: inv-dh-doc-06
      TypeReference(ADHA Core Organization, Organization)
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Identifies where to go to find the current version, where to report issues, etc.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-dh-doc-06: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
      42. Composition.relatesTo
      Definition

      Relationships that this composition has with other compositions or documents that already exist.

      ShortRelationships to other compositions/documents
      Comments

      A document is a version specific composition.

      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      44. Composition.relatesTo.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())
      46. Composition.relatesTo.code
      Definition

      The type of relationship that this composition has with anther composition or document.

      Shortreplaces | transforms | signs | appends
      Comments

      If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

      Control1..1
      BindingThe codes SHALL be taken from DocumentRelationshipTypehttp://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1
      (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

      The type of relationship between documents.

      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      48. Composition.relatesTo.target[x]
      Definition

      The target composition/document of this relationship.

      ShortTarget of the relationship
      Control1..1
      TypeChoice of: Identifier, Reference(ADHA Core Composition, Composition)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      50. Composition.section
      Definition

      The root of the sections that make up the composition.

      ShortComposition is broken into sections
      Control10..*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
      cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-dh-sml-01: A section shall at least have an entry or an empty reason (entry.exists() or emptyReason.exists())
      inv-dh-sml-02: All observations shall conform to ADHA Simple Observation (entry.resolve().where($this is Observation).exists() implies entry.resolve().conformsTo('http://ns.electronichealth.net.au/fhir/StructureDefinition/dh-observation-simple-1'))
      cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
      cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
      SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • pattern @ code
      • 52. Composition.section.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())
        54. Composition.section.title
        Definition

        The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

        ShortLabel for section (e.g. for ToC)
        Comments

        The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

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

        Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

        Alternate Namesheader, label, caption
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        56. Composition.section.code
        Definition

        A code identifying the kind of content contained within the section. This must be consistent with the section title.

        ShortClassification of section (recommended)
        Comments

        The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

        If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

        Control0..1
        BindingFor example codes, see DocumentSectionCodeshttp://hl7.org/fhir/ValueSet/doc-section-codes
        (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

        Classification of a section of a composition/document.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Requirements

        Provides computable standardized labels to topics within the document.

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

        A human-readable narrative that contains the attested content of the section, 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.

        ShortText summary of the section, for human interpretation
        Comments

        Document profiles may define what content should be represented in the narrative to ensure clinical safety.

        Control0..1
        This element is affected by the following invariants: cmp-1
        TypeNarrative
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        60. Composition.section.mode
        Definition

        How the entry 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.

        Control0..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 section.

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Requirements

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

        Fixed Valuesnapshot
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        62. Composition.section.entry
        Definition

        A reference to the actual resource from which the narrative in the section is derived.

        ShortA reference to data that supports this section
        Comments

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

        Control0..*
        This element is affected by the following invariants: cmp-2
        TypeReference(Resource)
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        64. Composition.section.entry.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()))
        66. Composition.section.emptyReason
        Definition

        If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

        ShortWhy the section is empty
        Comments

        The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content 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: cmp-2
        BindingThe codes SHOULD be taken from ListEmptyReasonshttp://hl7.org/fhir/ValueSet/list-empty-reason
        (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

        If a section 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()))
        68. Composition.section:allergies
        Slice Nameallergies
        Definition

        Information about allergies and intolerances of the patient. This includes statements that a patient does not have an allergy or category of allergies.


        The root of the sections that make up the composition.

        ShortAllergiesComposition is broken into sections
        Control0..1*
        TypeBackboneElement
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
        cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
        cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
        70. Composition.section:allergies.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())
        72. Composition.section:allergies.title
        Definition

        The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

        ShortLabel for section (e.g. for ToC)
        Comments

        The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

        Control10..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summaryfalse
        Requirements

        Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

        Alternate Namesheader, label, caption
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        74. Composition.section:allergies.code
        Definition

        A code identifying the kind of content contained within the section. This must be consistent with the section title.

        ShortClassification of section (recommended)
        Comments

        The code identifies the section for an automated processor of the document. When sharing health records it is important that globally adopted vocabulary is supported to allow for ubiquitous discovery, access, and re-use. To meet this need, where a consistent vocabulary and common syntax to achieve semantic interoperability is widely adopted internationally that code is adopted in Agency materials.

        The LOINC concept 48765-2 adopted for this section is aligned with the vocabulary in International Patient Summary (IPS), Consolidated CDA (C-CDA), and C-CDA on FHIR.

        The use of concept 101.20113 from the Agency's NCTIS (National Clinical Terminology and Information Service) Data Components code system is deprecated but may also be supplied as an additional coding or it may be present in older data.

        If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.


        The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

        If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

        Control10..1
        BindingFor example codes, see DocumentSectionCodeshttp://hl7.org/fhir/ValueSet/doc-section-codes
        (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

        Classification of a section of a composition/document.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Requirements

        Provides computable standardized labels to topics within the document.

        Pattern Value{
          "coding" : [{
            "system" : "http://loinc.org",
            "code" : "48765-2"
          }]
        }
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        76. Composition.section:allergies.text
        Definition

        A human-readable narrative that contains the attested content of the section, 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.

        ShortText summary of the section, for human interpretation
        Comments

        Document profiles may define what content should be represented in the narrative to ensure clinical safety.

        Control0..1
        This element is affected by the following invariants: cmp-1
        TypeNarrative
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        78. Composition.section:allergies.mode
        Definition

        How the entry 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.

        Control0..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 section.

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Requirements

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

        Fixed Valuesnapshot
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        80. Composition.section:allergies.entry
        Definition

        A reference to the actual resource from which the narrative in the section is derived.

        ShortAllergies and/or intolerancesA reference to data that supports this section
        Comments

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

        Control0..*
        This element is affected by the following invariants: cmp-2, inv-dh-sml-01, inv-dh-sml-02
        TypeReference(ADHA Core AllergyIntolerance, Resource)
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        82. Composition.section:allergies.entry.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()))
        84. Composition.section:allergies.emptyReason
        Definition

        If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

        ShortWhy the section is empty
        Comments

        The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content 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: cmp-2, inv-dh-sml-01
        BindingThe codes SHALL be taken from The codes SHOULD be taken from Health Summary Non-Clinical Empty Reason .http://hl7.org/fhir/ValueSet/list-empty-reason
        (required to https://healthterminologies.gov.au/fhir/ValueSet/health-summary-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()))
        86. Composition.section:medicinesList
        Slice NamemedicinesList
        Definition

        A list of medicines for an individual at a point in time from a practitioner medicines review. 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.


        The root of the sections that make up the composition.

        ShortMedicines list from practitioner medicines reviewComposition is broken into sections
        Control10..*
        TypeBackboneElement
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
        cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        inv-dh-sml-04: If an assertion of no known current medications is provided, no other entry shall be present (entry.resolve().where($this is Observation).exists() implies (entry.count() < 2 and (entry.resolve().valueCodeableConcept.coding.code) = '1200661000168107'))
        inv-dh-sml-05: If present, a list shall have the same code as the section (entry.resolve().where($this is List).exists() implies ((entry.resolve().code.coding.code) = code.coding.code))
        cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
        cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
        88. Composition.section:medicinesList.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())
        90. Composition.section:medicinesList.title
        Definition

        The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

        ShortLabel for section (e.g. for ToC)
        Comments

        The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

        Control10..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summaryfalse
        Requirements

        Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

        Alternate Namesheader, label, caption
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        92. Composition.section:medicinesList.code
        Definition

        A code identifying the kind of content contained within the section. This must be consistent with the section title.

        ShortClassification of section (recommended)
        Comments

        The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

        If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the 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/doc-section-codes
        (required to https://healthterminologies.gov.au/fhir/ValueSet/history-of-medication-use-list-type-1)
        TypeCodeableConcept
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Requirements

        Provides computable standardized labels to topics within the document.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        94. Composition.section:medicinesList.text
        Definition

        A human-readable narrative that contains the attested content of the section, 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.

        ShortText summary of the section, for human interpretation
        Comments

        Document profiles may define what content should be represented in the narrative to ensure clinical safety.

        Control0..1
        This element is affected by the following invariants: cmp-1
        TypeNarrative
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        96. Composition.section:medicinesList.mode
        Definition

        How the entry 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.

        Control0..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 section.

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Requirements

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

        Fixed Valuesnapshot
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        98. Composition.section:medicinesList.entry
        Definition

        A reference to the actual resource from which the narrative in the section is derived.

        ShortMedicines listA reference to data that supports this section
        Comments

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

        Control0..*
        This element is affected by the following invariants: cmp-2, inv-dh-sml-01, inv-dh-sml-02, inv-dh-sml-04, inv-dh-sml-05
        TypeReference(ADHA Practitioner Medicine Review List, http://hl7.org.au/fhir/core/StructureDefinition/au-core-norelevantfinding, 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()))
        100. Composition.section:medicinesList.entry.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()))
        102. Composition.section:medicinesList.emptyReason
        Definition

        If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

        ShortWhy the section is empty
        Comments

        The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content 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: cmp-2, inv-dh-sml-01
        BindingThe codes SHALL be taken from The codes SHOULD be taken from Health Summary Non-Clinical Empty Reason .http://hl7.org/fhir/ValueSet/list-empty-reason
        (required to https://healthterminologies.gov.au/fhir/ValueSet/health-summary-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. Composition
        Definition

        A document that describes a patient's medicine item use at a point in time as an outcome from a practitioner medicines review. 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. The document may contain information about an individual's allergies.

        ShortPharmacist Shared Medicines List
        Comments

        While the focus of this specification is on patient-specific clinical statements, this resource can also apply to other healthcare-related statements such as study protocol designs, healthcare invoices and other activities that are not necessarily patient-specific or clinical.

        Control0..*
        Is Modifierfalse
        Summaryfalse
        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())
        inv-dh-doc-01: If present, an information recipient shall at least have a reference, an identifier or a display (informationRecipient.exists() implies informationRecipient.all($this.reference.exists() or $this.identifier.exists() or $this.display.exists()))
        inv-dh-doc-02: Sections shall be unique by code (section.select(code.coding.code).isDistinct())
        2. Composition.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. Composition.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. Composition.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. Composition.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. Composition.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. Composition.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. Composition.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 Composition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 16. Composition.extension:informationRecipient
          Slice NameinformationRecipient
          Definition

          A recipient who should receive a copy of the composition. A recipient is an entity to whom a copy of the composition is directed at the time of authoring of the composition.

          ShortInformation recipient
          Control0..*
          This element is affected by the following invariants: ele-1, inv-dh-doc-01
          TypeExtension(Information Recipient) (Extension Type: Reference(Practitioner, Device, Patient, RelatedPerson, PractitionerRole, Organization))
          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. Composition.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. Composition.identifier
          Definition

          A version-independent identifier for the Composition. This identifier stays constant as the composition is changed over time.

          ShortVersion-independent identifier for the Composition
          Comments

          Similar to ClinicalDocument/setId in CDA. See discussion in resource definition for how these relate.

          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control1..1
          TypeIdentifier
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          22. Composition.status
          Definition

          The workflow/clinical status of this composition. The status is a marker for the clinical standing of the document.

          Shortpreliminary | final | amended | entered-in-error
          Comments

          If a composition is marked as withdrawn, the compositions/documents in the series, or data from the composition or document series, should never be displayed to a user without being clearly marked as untrustworthy. The flag "entered-in-error" is why this element is labeled as a modifier of other elements.

          Some reporting work flows require that the original narrative of a final document never be altered; instead, only new narrative can be added. The composition resource has no explicit status for explicitly noting whether this business rule is in effect. This would be handled by an extension if required.

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

          The workflow/clinical status of the composition.

          Typecode
          Is Modifiertrue because This element is labelled 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
          Requirements

          Need to be able to mark interim, amended, or withdrawn compositions or documents.

          Pattern Valuefinal
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          24. Composition.type
          Definition

          Specifies the particular kind of composition (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the composition.

          ShortDocument sub type
          Comments

          For Composition type, LOINC is ubiquitous and strongly endorsed by HL7. Most implementation guides will require a specific LOINC code, or use LOINC as an extensible binding.

          Control1..1
          BindingUnless not suitable, these codes SHALL be taken from History Of Medication Use List Type .
          (extensible to https://healthterminologies.gov.au/fhir/ValueSet/history-of-medication-use-list-type-1)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Key metadata element describing the composition, used in searching/filtering.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "56445-0"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          26. Composition.category
          Definition

          A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

          ShortCategorization of Composition
          Comments

          This is a metadata field from XDS/MHD.

          Control1..*
          BindingUnless not suitable, these codes SHALL be taken from My Health Record Record Class .
          (extensible to https://healthterminologies.gov.au/fhir/ValueSet/mhr-record-class-1)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          SlicingThis element introduces a set of slices on Composition.category. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • pattern @ $this
          • 28. Composition.category:ms
            Slice Namems
            Definition

            A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

            ShortMedication summary
            Comments

            This is a metadata field from XDS/MHD.

            Control1..1
            BindingUnless not suitable, these codes SHALL be taken from My Health Record Record Class .
            (extensible to https://healthterminologies.gov.au/fhir/ValueSet/mhr-record-class-1)
            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

            Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

            Pattern Value{
              "coding" : [{
                "system" : "http://loinc.org",
                "code" : "56445-0"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            30. Composition.subject
            Definition

            Who or what the composition is about. The composition can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of livestock, or a set of patients that share a common exposure).

            ShortWho and/or what the composition is about
            Comments

            For clinical documents, this is usually the patient.

            Control1..1
            This element is affected by the following invariants: inv-dh-doc-03
            TypeReference(ADHA Core Patient)
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

            Essential metadata for searching for the composition. Identifies who and/or what the composition/document is about.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            inv-dh-doc-03: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
            32. Composition.encounter
            Definition

            Describes the clinical encounter or type of care this documentation is associated with.

            ShortContext of the Composition
            Control0..1
            TypeReference(ADHA Core Encounter)
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

            Provides context for the composition and supports searching.

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

            The composition editing time, when the composition was last logically changed by the author.

            ShortComposition editing time
            Comments

            The Last Modified Date on the composition may be after the date of the document was attested without being changed.

            Control1..1
            This element is affected by the following invariants: inv-dh-doc-07
            TypedateTime
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Requirements

            dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            inv-dh-doc-07: Date shall be at least to day (toString().length() >= 10)
            36. Composition.author
            Definition

            Identifies who is responsible for the information in the composition, not necessarily who typed it in.

            ShortWho and/or what authored the composition
            Control1..*
            This element is affected by the following invariants: inv-dh-doc-04
            TypeReference(ADHA Authoring PractitionerRole)
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

            Identifies who is responsible for the content.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            inv-dh-doc-04: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
            38. Composition.title
            Definition

            Official human-readable label for the composition.

            ShortHuman Readable name/title
            Comments

            For many compositions, the title is the same as the text or a display name of Composition.type (e.g. a "consultation" or "progress note"). Note that CDA does not make title mandatory, but there are no known cases where it is useful for title to be omitted, so it is mandatory here. Feedback on this requirement is welcome during the trial use period.

            Control1..1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            40. Composition.confidentiality
            Definition

            The code specifying the level of confidentiality of the Composition.

            ShortAs defined by affinity domain
            Comments

            The exact use of this element, and enforcement and issues related to highly sensitive documents are out of scope for the base specification, and delegated to implementation profiles (see security section). This element is labeled as a modifier because highly confidential documents must not be treated as if they are not.

            Control0..0
            BindingThe codes SHALL be taken from v3.ConfidentialityClassification (2014-03-26)
            (required to http://terminology.hl7.org/ValueSet/v3-ConfidentialityClassification|2014-03-26)

            Codes specifying the level of confidentiality of the composition.

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

            A participant who has attested to the accuracy of the composition/document.

            ShortAttests to accuracy of composition
            Comments

            Only list each attester once.

            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Requirements

            Identifies responsibility for the accuracy of the composition content.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            inv-dh-doc-05: The party shall at least have a reference or a valid identifier (party.reference.exists() or party.identifier.where(system.count() + value.count() >1).exists())
            44. Composition.attester.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. Composition.attester.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())
            48. Composition.attester.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())
            50. Composition.attester.mode
            Definition

            The type of attestation the authenticator offers.

            Shortpersonal | professional | legal | official
            Control1..1
            BindingThe codes SHALL be taken from CompositionAttestationMode
            (required to http://hl7.org/fhir/ValueSet/composition-attestation-mode|4.0.1)

            The way in which a person authenticated a composition.

            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summaryfalse
            Requirements

            Indicates the level of authority of the attestation.

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

            When the composition was attested by the party.

            ShortWhen the composition was attested
            Control1..1
            TypedateTime
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summaryfalse
            Requirements

            Identifies when the information in the composition was deemed accurate. (Things may have changed since then.).

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

            Who attested the composition in the specified way.

            ShortWho attested the composition
            Control1..1
            This element is affected by the following invariants: inv-dh-doc-05
            TypeReference(ADHA Authoring PractitionerRole, ADHA Core Patient, ADHA Authoring RelatedPerson, ADHA Core Organization)
            Is Modifierfalse
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            Summaryfalse
            Requirements

            Identifies who has taken on the responsibility for accuracy of the composition content.

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

            Identifies the organization or group who is responsible for ongoing maintenance of and access to the composition/document information.

            ShortOrganization which maintains the composition
            Comments

            This is useful when documents are derived from a composition - provides guidance for how to get the latest version of the document. This is optional because this is sometimes not known by the authoring system, and can be inferred by context. However, it is important that this information be known when working with a derived document, so providing a custodian is encouraged.

            Control1..1
            This element is affected by the following invariants: inv-dh-doc-06
            TypeReference(ADHA Core Organization)
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

            Identifies where to go to find the current version, where to report issues, etc.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            inv-dh-doc-06: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
            58. Composition.relatesTo
            Definition

            Relationships that this composition has with other compositions or documents that already exist.

            ShortRelationships to other compositions/documents
            Comments

            A document is a version specific composition.

            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            60. Composition.relatesTo.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. Composition.relatesTo.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())
            64. Composition.relatesTo.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())
            66. Composition.relatesTo.code
            Definition

            The type of relationship that this composition has with anther composition or document.

            Shortreplaces | transforms | signs | appends
            Comments

            If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

            Control1..1
            BindingThe codes SHALL be taken from DocumentRelationshipType
            (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

            The type of relationship between documents.

            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            68. Composition.relatesTo.target[x]
            Definition

            The target composition/document of this relationship.

            ShortTarget of the relationship
            Control1..1
            TypeChoice of: Identifier, Reference(ADHA Core Composition)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            70. Composition.event
            Definition

            The clinical service, such as a colonoscopy or an appendectomy, being documented.

            ShortThe clinical service(s) being documented
            Comments

            The event needs to be consistent with the type element, though can provide further information if desired.

            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Summarytrue
            Requirements

            Provides context for the composition and creates a linkage between a resource describing an event and the composition created describing the event.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            72. Composition.event.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
            74. Composition.event.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())
            76. Composition.event.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())
            78. Composition.event.code
            Definition

            This list of codes represents the main clinical acts, such as a colonoscopy or an appendectomy, being documented. In some cases, the event is inherent in the typeCode, such as a "History and Physical Report" in which the procedure being documented is necessarily a "History and Physical" act.

            ShortCode(s) that apply to the event being documented
            Comments

            An event can further specialize the act inherent in the typeCode, such as where it is simply "Procedure Report" and the procedure was a "colonoscopy". If one or more eventCodes are included, they SHALL NOT conflict with the values inherent in the classCode, practiceSettingCode or typeCode, as such a conflict would create an ambiguous situation. This short list of codes is provided to be used as key words for certain types of queries.

            Control0..*
            BindingFor example codes, see v3 Code System ActCode
            (example to http://terminology.hl7.org/ValueSet/v3-ActCode)

            This list of codes represents the main clinical acts being documented.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            80. Composition.event.period
            Definition

            The period of time covered by the documentation. There is no assertion that the documentation is a complete representation for this period, only that it documents events during this time.

            ShortThe period covered by the documentation
            Control0..1
            TypePeriod
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            82. Composition.event.detail
            Definition

            The description and/or reference of the event(s) being documented. For example, this could be used to document such a colonoscopy or an appendectomy.

            ShortThe event(s) being documented
            Control0..*
            TypeReference(Resource)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            84. Composition.section
            Definition

            The root of the sections that make up the composition.

            ShortComposition is broken into sections
            Control1..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
            cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            inv-dh-sml-01: A section shall at least have an entry or an empty reason (entry.exists() or emptyReason.exists())
            inv-dh-sml-02: All observations shall conform to ADHA Simple Observation (entry.resolve().where($this is Observation).exists() implies entry.resolve().conformsTo('http://ns.electronichealth.net.au/fhir/StructureDefinition/dh-observation-simple-1'))
            SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • pattern @ code
            • 86. Composition.section.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
              88. Composition.section.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())
              90. Composition.section.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())
              92. Composition.section.title
              Definition

              The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

              ShortLabel for section (e.g. for ToC)
              Comments

              The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

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

              Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

              Alternate Namesheader, label, caption
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              94. Composition.section.code
              Definition

              A code identifying the kind of content contained within the section. This must be consistent with the section title.

              ShortClassification of section (recommended)
              Comments

              The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

              If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

              Control0..1
              BindingFor example codes, see DocumentSectionCodes
              (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

              Classification of a section of a composition/document.

              TypeCodeableConcept
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Requirements

              Provides computable standardized labels to topics within the document.

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

              Identifies who is responsible for the information in this section, not necessarily who typed it in.

              ShortWho and/or what authored the section
              Control0..*
              TypeReference(Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
              Is Modifierfalse
              Summaryfalse
              Requirements

              Identifies who is responsible for the content.

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

              The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

              ShortWho/what the section is about, when it is not about the subject of composition
              Comments

              Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

              Control0..1
              TypeReference(Resource)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              100. Composition.section.text
              Definition

              A human-readable narrative that contains the attested content of the section, 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.

              ShortText summary of the section, for human interpretation
              Comments

              Document profiles may define what content should be represented in the narrative to ensure clinical safety.

              Control0..1
              This element is affected by the following invariants: cmp-1
              TypeNarrative
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              102. Composition.section.mode
              Definition

              How the entry 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.

              Control0..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 section.

              Typecode
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Requirements

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

              Fixed Valuesnapshot
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              104. Composition.section.orderedBy
              Definition

              Specifies the order applied to the items in the section entries.

              ShortOrder of section entries
              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 the entry.

              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()))
              106. Composition.section.entry
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortA reference to data that supports this section
              Comments

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

              Control0..*
              This element is affected by the following invariants: cmp-2
              TypeReference(Resource)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              108. Composition.section.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
              110. Composition.section.entry.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 Composition.section.entry.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 112. Composition.section.entry.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()))
                114. Composition.section.entry.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()))
                116. Composition.section.entry.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()))
                118. Composition.section.entry.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()))
                120. Composition.section.emptyReason
                Definition

                If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                ShortWhy the section is empty
                Comments

                The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content 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: cmp-2
                BindingThe codes SHOULD be taken from ListEmptyReasons
                (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

                If a section 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()))
                122. Composition.section.section
                Definition

                A nested sub-section within this section.

                ShortNested Section
                Comments

                Nested sections are primarily used to help human readers navigate to particular portions of the document.

                Control0..*
                This element is affected by the following invariants: cmp-1
                TypeSeettp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                124. Composition.section:allergies
                Slice Nameallergies
                Definition

                Information about allergies and intolerances of the patient. This includes statements that a patient does not have an allergy or category of allergies.

                ShortAllergies
                Control0..1
                TypeBackboneElement
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                126. Composition.section:allergies.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
                128. Composition.section:allergies.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())
                130. Composition.section:allergies.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())
                132. Composition.section:allergies.title
                Definition

                The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                ShortLabel for section (e.g. for ToC)
                Comments

                The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

                Control1..1
                Typestring
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                Summaryfalse
                Requirements

                Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                Alternate Namesheader, label, caption
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                134. Composition.section:allergies.code
                Definition

                A code identifying the kind of content contained within the section. This must be consistent with the section title.

                ShortClassification of section (recommended)
                Comments

                The code identifies the section for an automated processor of the document. When sharing health records it is important that globally adopted vocabulary is supported to allow for ubiquitous discovery, access, and re-use. To meet this need, where a consistent vocabulary and common syntax to achieve semantic interoperability is widely adopted internationally that code is adopted in Agency materials.

                The LOINC concept 48765-2 adopted for this section is aligned with the vocabulary in International Patient Summary (IPS), Consolidated CDA (C-CDA), and C-CDA on FHIR.

                The use of concept 101.20113 from the Agency's NCTIS (National Clinical Terminology and Information Service) Data Components code system is deprecated but may also be supplied as an additional coding or it may be present in older data.

                If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

                Control1..1
                BindingFor example codes, see DocumentSectionCodes
                (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

                Classification of a section of a composition/document.

                TypeCodeableConcept
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                Requirements

                Provides computable standardized labels to topics within the document.

                Pattern Value{
                  "coding" : [{
                    "system" : "http://loinc.org",
                    "code" : "48765-2"
                  }]
                }
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                136. Composition.section:allergies.author
                Definition

                Identifies who is responsible for the information in this section, not necessarily who typed it in.

                ShortWho and/or what authored the section
                Control0..*
                TypeReference(Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
                Is Modifierfalse
                Summaryfalse
                Requirements

                Identifies who is responsible for the content.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                138. Composition.section:allergies.focus
                Definition

                The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                ShortWho/what the section is about, when it is not about the subject of composition
                Comments

                Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                Control0..1
                TypeReference(Resource)
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                140. Composition.section:allergies.text
                Definition

                A human-readable narrative that contains the attested content of the section, 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.

                ShortText summary of the section, for human interpretation
                Comments

                Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                Control0..1
                This element is affected by the following invariants: cmp-1
                TypeNarrative
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                142. Composition.section:allergies.mode
                Definition

                How the entry 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.

                Control0..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 section.

                Typecode
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summaryfalse
                Requirements

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

                Fixed Valuesnapshot
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                144. Composition.section:allergies.orderedBy
                Definition

                Specifies the order applied to the items in the section entries.

                ShortOrder of section entries
                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 the entry.

                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()))
                146. Composition.section:allergies.entry
                Definition

                A reference to the actual resource from which the narrative in the section is derived.

                ShortAllergies and/or intolerances
                Comments

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

                Control0..*
                This element is affected by the following invariants: cmp-2, inv-dh-sml-01, inv-dh-sml-02
                TypeReference(ADHA Core AllergyIntolerance)
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                148. Composition.section:allergies.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
                150. Composition.section:allergies.entry.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 Composition.section.entry.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 152. Composition.section:allergies.entry.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()))
                  154. Composition.section:allergies.entry.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()))
                  156. Composition.section:allergies.entry.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()))
                  158. Composition.section:allergies.entry.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()))
                  160. Composition.section:allergies.emptyReason
                  Definition

                  If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                  ShortWhy the section is empty
                  Comments

                  The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content 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: cmp-2, inv-dh-sml-01
                  BindingThe codes SHALL be taken from Health Summary Non-Clinical Empty Reason .
                  (required to https://healthterminologies.gov.au/fhir/ValueSet/health-summary-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()))
                  162. Composition.section:allergies.section
                  Definition

                  A nested sub-section within this section.

                  ShortNested Section
                  Comments

                  Nested sections are primarily used to help human readers navigate to particular portions of the document.

                  Control0..*
                  This element is affected by the following invariants: cmp-1
                  TypeSeettp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  164. Composition.section:medicinesList
                  Slice NamemedicinesList
                  Definition

                  A list of medicines for an individual at a point in time from a practitioner medicines review. 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.

                  ShortMedicines list from practitioner medicines review
                  Control1..*
                  TypeBackboneElement
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                  cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                  ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  inv-dh-sml-04: If an assertion of no known current medications is provided, no other entry shall be present (entry.resolve().where($this is Observation).exists() implies (entry.count() < 2 and (entry.resolve().valueCodeableConcept.coding.code) = '1200661000168107'))
                  inv-dh-sml-05: If present, a list shall have the same code as the section (entry.resolve().where($this is List).exists() implies ((entry.resolve().code.coding.code) = code.coding.code))
                  166. Composition.section:medicinesList.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
                  168. Composition.section:medicinesList.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())
                  170. Composition.section:medicinesList.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())
                  172. Composition.section:medicinesList.title
                  Definition

                  The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                  ShortLabel for section (e.g. for ToC)
                  Comments

                  The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

                  Control1..1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supporttrue
                  Summaryfalse
                  Requirements

                  Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                  Alternate Namesheader, label, caption
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  174. Composition.section:medicinesList.code
                  Definition

                  A code identifying the kind of content contained within the section. This must be consistent with the section title.

                  ShortClassification of section (recommended)
                  Comments

                  The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

                  If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the 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
                  Summaryfalse
                  Requirements

                  Provides computable standardized labels to topics within the document.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  176. Composition.section:medicinesList.author
                  Definition

                  Identifies who is responsible for the information in this section, not necessarily who typed it in.

                  ShortWho and/or what authored the section
                  Control0..*
                  TypeReference(Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
                  Is Modifierfalse
                  Summaryfalse
                  Requirements

                  Identifies who is responsible for the content.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  178. Composition.section:medicinesList.focus
                  Definition

                  The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                  ShortWho/what the section is about, when it is not about the subject of composition
                  Comments

                  Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                  Control0..1
                  TypeReference(Resource)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  180. Composition.section:medicinesList.text
                  Definition

                  A human-readable narrative that contains the attested content of the section, 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.

                  ShortText summary of the section, for human interpretation
                  Comments

                  Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                  Control0..1
                  This element is affected by the following invariants: cmp-1
                  TypeNarrative
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  182. Composition.section:medicinesList.mode
                  Definition

                  How the entry 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.

                  Control0..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 section.

                  Typecode
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summaryfalse
                  Requirements

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

                  Fixed Valuesnapshot
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  184. Composition.section:medicinesList.orderedBy
                  Definition

                  Specifies the order applied to the items in the section entries.

                  ShortOrder of section entries
                  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 the entry.

                  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()))
                  186. Composition.section:medicinesList.entry
                  Definition

                  A reference to the actual resource from which the narrative in the section is derived.

                  ShortMedicines list
                  Comments

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

                  Control0..*
                  This element is affected by the following invariants: cmp-2, inv-dh-sml-01, inv-dh-sml-02, inv-dh-sml-04, inv-dh-sml-05
                  TypeReference(ADHA Practitioner Medicine Review List, http://hl7.org.au/fhir/core/StructureDefinition/au-core-norelevantfinding)
                  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()))
                  188. Composition.section:medicinesList.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
                  190. Composition.section:medicinesList.entry.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 Composition.section.entry.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 192. Composition.section:medicinesList.entry.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()))
                    194. Composition.section:medicinesList.entry.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()))
                    196. Composition.section:medicinesList.entry.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()))
                    198. Composition.section:medicinesList.entry.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()))
                    200. Composition.section:medicinesList.emptyReason
                    Definition

                    If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                    ShortWhy the section is empty
                    Comments

                    The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content 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: cmp-2, inv-dh-sml-01
                    BindingThe codes SHALL be taken from Health Summary Non-Clinical Empty Reason .
                    (required to https://healthterminologies.gov.au/fhir/ValueSet/health-summary-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()))
                    202. Composition.section:medicinesList.section
                    Definition

                    A nested sub-section within this section.

                    ShortNested Section
                    Comments

                    Nested sections are primarily used to help human readers navigate to particular portions of the document.

                    Control0..*
                    This element is affected by the following invariants: cmp-1
                    TypeSeettp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                    Is Modifierfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))