<status value="draft" /> <date value="2024-02-01T19:39:15.322061+00:00" /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <context> <type value="element" /> <expression value="Composition.category" /> </context> <context> <type value="element" /> <expression value="DocumentReference.category" /> </context> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://ontariohealth.ca/fhir/StructureDefinition/ext-loinc-ontology-axis" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <type> <code value="Coding" /> </type> <mustSupport value="true" /> <binding> <strength value="required" /> <description value="Indicates the type of LOINC document ontology axis" /> <valueSet value="http://ontariohealth.ca/fhir/ValueSet/LOINC-ontology-part-types" /> </binding> </element> <element id="Extension.value[x].system"> <path value="Extension.value[x].system" /> <min value="1" /> <fixedUri value="http://loinc.org" /> <mustSupport value="true" /> </element> <element id="Extension.value[x].code"> <path value="Extension.value[x].code" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Extension.value[x].display"> <path value="Extension.value[x].display" /> <min value="1" /> <mustSupport value="true" /> </element> </differential> </StructureDefinition>