FHIR Extensions Pack
5.3.0-ballot-tc1 - (September 2025 Ballot) International flag

FHIR Extensions Pack, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 5.3.0-ballot-tc1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-extensions/ and changes regularly. See the Directory of published versions

Extension: Event history

Official URL: http://hl7.org/fhir/StructureDefinition/event-eventHistory Version: 5.3.0-ballot-tc1
Standards status: Trial-use Maturity Level: 3 Computable Name: EventHistory
Other Identifiers: OID:2.16.840.1.113883.4.642.5.1520

Links to Provenance records for past versions of this resource that document key state transitions or updates that are deemed "relevant" or important to a user looking at the current version of the resource. E.g, when an observation was verified or corrected. This extension does not point to the Provenance associated with the current version of the resource - as it would be created after this version existed. The Provenance for the current version can be retrieved with a _revinclude.

Context of Use

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

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:

  • No changes

    • 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 Reference: Links to Provenance records for past versions of this resource that document key state transitions or updates that are deemed "relevant" or important to a user looking at the current version of the resource. E.g, when an observation was verified or corrected. This extension does not point to the Provenance associated with the current version of the resource - as it would be created after this version existed. The Provenance for the current version can be retrieved with a _revinclude.

    Maturity: 3

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension Events of interest in the resource lifecycle
    ... extension 0..0 Extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/event-eventHistory"
    ... value[x] 1..1 Reference(Provenance) Value of extension

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension Events of interest in the resource lifecycle
    ... 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/event-eventHistory"

    doco Documentation for this format

    This structure is derived from Extension

    Summary

    Simple Extension with the type Reference: Links to Provenance records for past versions of this resource that document key state transitions or updates that are deemed "relevant" or important to a user looking at the current version of the resource. E.g, when an observation was verified or corrected. This extension does not point to the Provenance associated with the current version of the resource - as it would be created after this version existed. The Provenance for the current version can be retrieved with a _revinclude.

    Maturity: 3

    Differential View

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension Events of interest in the resource lifecycle
    ... extension 0..0 Extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/event-eventHistory"
    ... value[x] 1..1 Reference(Provenance) Value of extension

    doco Documentation for this format

    Snapshot View

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension Events of interest in the resource lifecycle
    ... 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/event-eventHistory"

    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 represented a little differently in R4B:

    • Adjust the extension context DeviceUsage to Basic
    • Note: Extensions that have been modified for R4B are still draft while real-world experience is collected
    Name Flags Card. Type Description & Constraints      Filter: Filters doco
    . . Extension 0..* Extension Events of interest in the resource lifecycle
    . . . extension 0 .. 0 Extension
    . . . url 1 .. 1 uri "http://hl7.org/fhir/StructureDefinition/event-eventHistory"
    . . . value[x] 1.. 1 Reference ( Provenance ) Value of extension

    doco Documentation for this format

    R4

    The extension is represented a little differently in R4:

    • Adjust the extension context DeviceUsage to Basic
    • Note: Extensions that have been modified for R4 are still draft while real-world experience is collected
    Name Flags Card. Type Description & Constraints      Filter: Filters doco
    . . Extension 0..* Extension Events of interest in the resource lifecycle
    . . . extension 0 .. 0 Extension
    . . . url 1 .. 1 uri "http://hl7.org/fhir/StructureDefinition/event-eventHistory"
    . . . value[x] 1.. 1 Reference ( Provenance ) Value of extension

    doco Documentation for this format

    R3

    The extension is represented a little differently in R3:

    • Adjust the extension context DeviceUsage to Basic
    • Note: Extensions that have been modified for R3 are still draft while real-world experience is collected
    Name Flags Card. Type Description & Constraints      Filter: Filters doco
    . . Extension 0..* Extension Events of interest in the resource lifecycle
    . . . extension 0 .. 0 Extension
    . . . url 1 .. 1 uri "http://hl7.org/fhir/StructureDefinition/event-eventHistory"
    . . . value[x] 1.. 1 Reference ( Provenance ) Value of extension

    doco Documentation for this format

    Search Parameters for this Extension

    (none found)