http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version|4.0.1

If this StructureDefinition is normative, which was the first normative version.
NameFlagsCardTypeDescription & Constraints
Extension
0..1If normative, which was the first normative version
 
extension
?..0
 
url
?..?
 
value[x] *
1..? FHIRVersion (required)
 
 
valueCode *
1..?code FHIRVersion (required)