{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "The numeric value is undefined or unrepresentable due to a floating point processing error.",
  "system" : "http://terminology.hl7.org/CodeSystem/data-absent-reason",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "error"
  } ],
  "codesystem" : "6d7f40eb-45f3-5013-b284-54abc5dd78b2",
  "concept_id" : "8023a65b-5a1c-5aef-829a-9b8c60e33a63",
  "ancestors" : {
    "error" : 1,
    "not-a-number" : 0
  },
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "This is sometimes an output value from measuring devices."
  } ],
  "id" : "1b76c3ea-a6bf-42e7-95ff-b2577b2ade5c",
  "code" : "not-a-number",
  "display" : "Not a Number (NaN)",
  "version" : "4.0.1"
}