{
  "package" : "hl7.terminology.r5@6.3.0",
  "definition" : "Known to have no proper value (e.g., last menstrual period for a male).",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-NullFlavor",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#status",
    "code" : "status",
    "valueCode" : "active"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id",
    "code" : "internalId",
    "valueCode" : "10611"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "subsumedBy",
    "valueCode" : "NI"
  } ],
  "codesystem" : "1567b235-54c7-5bac-b989-a54941e5aaa2",
  "concept_id" : "d9af3604-5bf8-5fd6-a39b-e689bbe4beb2",
  "ancestors" : {
    "NA" : 0,
    "NI" : 1
  },
  "id" : "798ba7e4-7b7e-47d5-998d-77b613c9c966",
  "code" : "NA",
  "display" : "not applicable",
  "version" : "3.0.0"
}