http://hl7.org/fhir/StructureDefinition/artifact-usage|5.2.0

Describes the clinical usage of the artifact.

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