http://hl7.org/fhir/StructureDefinition/canonical|4.0.1

Base StructureDefinition for canonical type: A URI that is a reference to a canonical URL on a FHIR resource
typedestination
baseDefinitionhttp://hl7.org/fhir/StructureDefinition/uri
typehttp://hl7.org/fhir/StructureDefinition/canonical