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

{description: 'Base StructureDefinition for Distance Type: A length - a value with a unit that is a physical distance.', derivation: specialization, name: Distance, type: Distance, class: complex-type, kind: complex-type, url: 'http://hl7.org/fhir/StructureDefinition/Distance', base: 'http://hl7.org/fhir/StructureDefinition/Quantity', version: 4.0.1}