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

Descriptive topics related to the content of the artifact. Topics provide a high-level categorization of the artifact that can be useful for filtering and searching.
NameFlagsCardTypeDescription & Constraints
Extension
0..*E.g. Education, Treatment, Assessment, etc.
 
extension
?..0
 
url
?..?
 
value[x] *
1..? DefinitionTopic (example)
 
 
valueCodeableConcept *
1..?CodeableConcept DefinitionTopic (example)