http://hl7.org/fhir/StructureDefinition/workflow-releaseDate|5.2.0

Indicates the date on which request or event resource that has a status of 'on-hold' or 'suspended' should be moved back to an active state.

element_id	types
Extension
Extension.extension
Extension.url
Extension.value[x]	dateTime
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	dateTime