{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0544",
  "property" : [ ],
  "codesystem" : "9c4bdba6-794f-53fd-be20-d9617f11c06e",
  "concept_id" : "8a53c956-6b88-547f-bd56-0c9ee58e65bf",
  "ancestors" : {
    "XFRZ" : 0
  },
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "Failed to keep at frozen temperature: -4 degrees C."
  } ],
  "id" : "5d9a9458-aa65-499d-a73e-7c6c0e71fe79",
  "code" : "XFRZ",
  "display" : "Not Frozen temperature",
  "version" : "2.9"
}