{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0731",
  "property" : [ ],
  "codesystem" : "d7ba2efc-a9b3-5a47-98ee-b2ea153b43a0",
  "concept_id" : "857ce6e8-bec7-5086-a88b-74c9a2878a7f",
  "ancestors" : {
    "4" : 0
  },
  "id" : "ffc8a955-d790-4ff9-97d1-d033a5c65920",
  "code" : "4",
  "display" : "Invalid for this age",
  "version" : "2.9"
}