<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="ext-original-update-date" />
  <url value="http://ontariohealth.ca/fhir/ehr/StructureDefinition/ext-original-update-date" />
  <name value="OriginalUpdateDate" />
  <title value="Original last updated date prior to data migration" />
  <status value="active" />
  <description value="Records the original last updated date of the associated resource from the original source system, prior to transformation and migration to the new FHIR repository." />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Provenance" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Original last updated date prior to data migration" />
      <definition value="Records the original last updated date of the associated resource from the original source system, prior to transformation and migration to the new FHIR repository." />
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://ontariohealth.ca/fhir/ehr/StructureDefinition/ext-original-update-date" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <min value="1" />
      <type>
        <code value="dateTime" />
      </type>
    </element>
  </differential>
</StructureDefinition>