<status value="active" /> <experimental value="false" /> <date value="2019-06-24T12:54:09.9567799+00:00" /> <publisher value="National Comprehensive Cancer Network, Inc." /> <contact> <telecom> <system value="url" /> <value value="https://www.nccn.org/about/contact.aspx" /> <use value="work" /> </telecom> </contact> <description value="When medication should be administered. See https://www.hl7.org/fhir/datatypes.html#Timing for more information and examples." /> <copyright value="National Comprehensive Cancer Network, Inc. (c) 2017. All right reserved." /> <fhirVersion value="3.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <contextType value="resource" /> <context value="ActivityDefinition.dosage.timing" /> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension"> <path value="Extension" /> <short value="When medication should be administered." /> <definition value="When medication should be administered. See https://www.hl7.org/fhir/datatypes.html#Timing for more information and examples." /> <comment value="This attribute may not always be populated while the Dosage.text is expected to be populated. If both are populated, then the Dosage.text should reflect the content of the Dosage.timing." /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://ots.nccn.org/hl7/fhir/StructureDefinition/timing" /> </element> <element id="Extension.value[x]:valueCode"> <path value="Extension.valueCode" /> <sliceName value="valueCode" /> <type> <code value="code" /> </type> </element> </differential> </StructureDefinition>