{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Indicates the result of a particular allergy test.  E.g. Negative, Mild, Moderate, Severe",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationValue",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#notSelectable",
    "code" : "notSelectable",
    "valueBoolean" : true
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "A0"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "A1"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "A2"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "A3"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "A4"
  } ],
  "codesystem" : "ec013d25-2aca-5859-85ca-8417fa535d67",
  "concept_id" : "e4cbcf3d-34b9-5152-b3ca-bd63faa795e5",
  "ancestors" : {
    "_AllergyTestValue" : 0
  },
  "id" : "499c4911-538f-4ad8-a3b8-5546374ccd3d",
  "code" : "_AllergyTestValue",
  "display" : "AllergyTestValue",
  "version" : "2018-08-12"
}