FHIR Extensions Pack
5.3.0 - May 2026 International flag

This page is part of the FHIR Core Extensions Registry (v5.3.0: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Extension: Composition Version Number

Official URL: http://hl7.org/fhir/StructureDefinition/composition-clinicaldocument-versionNumber Version: 5.3.0
Standards status: Trial-use Maturity Level: 3 Responsible: HL7 International / Structured Documents Computable Name: CDVersionNumber
Other Identifiers: OID:2.16.840.1.113883.4.642.5.1177

Version specific identifier for the composition, assigned when each version is created/updated. Note: this extension is only used before R5 because Composition has a version element which should be used instead.

Context of Use

This extension may be used on the following element(s)

This extension is allowed for use with FHIR versions up to R4B .

Usage info

Usages:

  • This Extension is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

Changes since version 5.2.0:

  • The resource metadata has changed (status, description)
  • The data elements list has changed
  • One or more text definitions, invariants or bindings have changed

    • Formal Views of Extension Content

    Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

    This structure is derived from Extension

    Summary

    Simple Extension with the type string: Version specific identifier for the composition, assigned when each version is created/updated. Note: this extension is only used before R5 because Composition has a version element which should be used instead.

    Maturity: 3

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Version-specific identifier for composition
    ... extension 0..0 Extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/composition-clinicaldocument-versionNumber"
    ... value[x] 1..1 string Value of extension

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Version-specific identifier for composition
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/composition-clinicaldocument-versionNumber"

    doco Documentation for this format

    This structure is derived from Extension

    Summary

    Simple Extension with the type string: Version specific identifier for the composition, assigned when each version is created/updated. Note: this extension is only used before R5 because Composition has a version element which should be used instead.

    Maturity: 3

    Differential View

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Version-specific identifier for composition
    ... extension 0..0 Extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/composition-clinicaldocument-versionNumber"
    ... value[x] 1..1 string Value of extension

    doco Documentation for this format

    Snapshot View

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Version-specific identifier for composition
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/composition-clinicaldocument-versionNumber"

    doco Documentation for this format

     

    Other representations of profile: CSV, Excel, Schematron

    Constraints

    Id Grade Path(s) Description Expression
    ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
    ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

    R4B

    The extension is unchanged in R4B

    R4

    The extension is unchanged in R4

    R3

    The extension is unchanged in R3

    Search Parameters for this Extension

    (none found)