<status value="active" /> <date value="2018-02-13" /> <publisher value="Argonaut Project" /> <contact> <telecom> <system value="url" /> <value value="http://argonautwiki.hl7.org" /> </telecom> </contact> <description value="A brief, natural language description of a particular event identified by the implementation environment. When this event is evaluated as true, it triggers a notification to the subscriber." /> <jurisdiction> <coding> <system value="urn:iso:std:iso:3166" /> <code value="US" /> <display value="United States of America" /> </coding> </jurisdiction> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <contextType value="resource" /> <context value="Subscription.criteria" /> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension:trigger-event"> <path value="Extension" /> <short value="Subscription Trigger Event Extension" /> <definition value="A brief, natural language description of a particular event identified by the implementation environment. When this event is evaluated as true, it triggers a notification to the subscriber." /> <comment value="If the expression is a [FHIRPath](http://hl7.org/fhirpath/) expression, use the [fhirPath Expression](cqif/extension-cqif-fhirpathexpression.html) extension." /> <min value="0" /> <max value="*" /> </element> <element id="Extension:trigger-event.url"> <path value="Extension.url" /> <fixedUri value="http://fhir.org/guides/argonaut-scheduling/StructureDefinition/extension-subscription-triggerevent" /> </element> <element id="Extension:trigger-event.valueString"> <path value="Extension.valueString" /> <type> <code value="string" /> </type> </element> </differential> </StructureDefinition>