{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Unknown",
  "system" : "http://terminology.hl7.org/CodeSystem/missingtoothreason",
  "property" : [ ],
  "codesystem" : "368f60e4-1433-52d9-ae52-69a679fe54e2",
  "concept_id" : "a74b5d00-5e38-5676-ab53-bbc178bd3ee5",
  "ancestors" : {
    "u" : 0
  },
  "id" : "91119178-1ae1-432a-aed8-d63bdd60295c",
  "code" : "u",
  "display" : "U",
  "version" : "4.0.1"
}