{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0731",
  "property" : [ ],
  "codesystem" : "4b955325-43ea-5fe1-96c6-987e12d3c685",
  "concept_id" : "857ce6e8-bec7-5086-a88b-74c9a2878a7f",
  "ancestors" : {
    "4" : 0
  },
  "id" : "957d8f22-48d5-416d-bd9e-c286309954a2",
  "code" : "4",
  "display" : "Invalid for this age",
  "version" : "2.9"
}