http://hl7.org/fhir/StructureDefinition/resource-approvalDate|5.2.0

The date on which the asset content was approved by the publisher. Approval happens once when the content is officially approved for usage.

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