<status value="draft" /> <description value="Sometimes a referral needs to communicate where the patient is at the time of the referral (e.g., in Ward X of Hospital Y), which may be different from the patient's home address. To communicate this, use this extension, which references a Location resource. Present location can be nested using Location.partOf to communicate locations with multiple levels, e.g., Location.partOf > Location for WardX > HospitalY." /> <fhirVersion value="4.0.1" /> <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" /> <definition value="Used to communicate the present location of the patient if it is different than the patient's home address." /> </element> <element id="Extension.extension"> <path value="Extension.extension" /> <max value="0" /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-Patient-Present-Location-EXT" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-Location" /> </type> </element> </differential> </StructureDefinition>