<status value="draft" /> <experimental value="false" /> <publisher value="Canada Health Infoway" /> <contact> <name value="National Standards Release Centre" /> <telecom> <system value="url" /> <value value="http://www.infoway-inforoute.ca" /> </telecom> <telecom> <system value="email" /> <value value="standards@infoway-inforoute.ca" /> </telecom> </contact> <description value="DARC stands for 'Dates Affecting Readiness to Consult' and is defines as: Periods of time between the referral and consult date when the patient is unavailable for a first consultation due to patient-related reasons." /> <jurisdiction> <coding> <system value="urn:iso:std:iso:3166" /> <code value="CA" /> </coding> </jurisdiction> <copyright value="Copyright © 2025+ Canada Health Infoway. All rights reserved. [Terms of Use and License Agreements](https://ic.infoway-inforoute.ca/en/about/tou). [Privacy Policy](https://www.infoway-inforoute.ca/en/legal/privacy-policy)." /> <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="DARC stands for 'Dates Affecting Readiness to Consult' and is defined as: Periods of time between the referral and consult date when the patient is unavailable for a first consultation due to patient-related reasons." /> </element> <element id="Extension.extension:StartDate"> <path value="Extension.extension" /> <sliceName value="StartDate" /> <min value="0" /> <max value="1" /> <mustSupport value="true" /> </element> <element id="Extension.extension:StartDate.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:StartDate.url"> <path value="Extension.extension.url" /> <fixedUri value="StartDate" /> </element> <element id="Extension.extension:StartDate.value[x]"> <path value="Extension.extension.value[x]" /> <type> <code value="dateTime" /> </type> </element> <element id="Extension.extension:EndDate"> <path value="Extension.extension" /> <sliceName value="EndDate" /> <min value="0" /> <max value="1" /> <mustSupport value="true" /> </element> <element id="Extension.extension:EndDate.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:EndDate.url"> <path value="Extension.extension.url" /> <fixedUri value="EndDate" /> </element> <element id="Extension.extension:EndDate.value[x]"> <path value="Extension.extension.value[x]" /> <type> <code value="dateTime" /> </type> </element> <element id="Extension.extension:DARCCodes"> <path value="Extension.extension" /> <sliceName value="DARCCodes" /> <min value="0" /> <max value="1" /> <mustSupport value="true" /> </element> <element id="Extension.extension:DARCCodes.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:DARCCodes.url"> <path value="Extension.extension.url" /> <fixedUri value="DARCCodes" /> </element> <element id="Extension.extension:DARCCodes.value[x]"> <path value="Extension.extension.value[x]" /> <type> <code value="CodeableConcept" /> </type> <binding> <strength value="extensible" /> <valueSet value="https://fhir.infoway-inforoute.ca/io/CA-eReC/ValueSet/DARC-DART-reason" /> </binding> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-darc" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <max value="0" /> </element> </differential> </StructureDefinition>