<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="event-eventHistory" />
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir" />
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1" />
  </extension>
  <url value="http://hl7.org/fhir/StructureDefinition/event-eventHistory" />
  <version value="4.0.0" />
  <name value="eventHistory" />
  <title value="Event History" />
  <status value="draft" />
  <date value="2017-12-06" />
  <publisher value="Health Level Seven, Inc. - FHIR WG" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://hl7.org/special/committees/fwg" />
    </telecom>
  </contact>
  <description value="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`](search.html#revinclude)." />
  <fhirVersion value="4.0.0" />
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Observation" />
  </context>
  <context>
    <type value="element" />
    <expression value="DiagnosticReport" />
  </context>
  <context>
    <type value="element" />
    <expression value="Task" />
  </context>
  <context>
    <type value="element" />
    <expression value="SupplyDelivery" />
  </context>
  <context>
    <type value="element" />
    <expression value="DeviceUseStatement" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Events of interest in the resource lifecycle" />
      <definition value="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`](search.html#revinclude)." />
      <comment value="May reference only *Provenance* resources deemed “relevant” or important. This element 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`](search.html#revinclude)." />
      <min value="0" />
      <max value="*" />
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <type>
        <code value="uri" />
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/event-eventHistory" />
    </element>
    <element id="Extension.valueReference">
      <path value="Extension.valueReference" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Provenance" />
      </type>
    </element>
  </differential>
</StructureDefinition>