<status value="active" /> <description value="The Last External Facing Date" /> <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="ServiceRequest" /> </context> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension"> <path value="Extension" /> <comment value="This is the last external facing update" /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="https://health.gov.on.ca/idms/fhir/StructureDefinition/LastExternalDate" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <min value="1" /> <type> <code value="dateTime" /> </type> </element> </differential> </StructureDefinition>