{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The result for a quantitative observation is below a reference level at which immediate action should be considered for patient safety (as defined for the respective test procedure).\\r\\n\\n                        Synonym: Below lower panic limits.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "AA"
  } ],
  "codesystem" : "f0c8fd69-370c-5f88-82c4-74348ff8483f",
  "concept_id" : "9612d96e-d631-5096-b3ea-be268dd01f92",
  "ancestors" : {
    "A" : 2,
    "AA" : 1,
    "LL" : 0,
    "_ObservationInterpretationNormality" : 3
  },
  "id" : "d467fd73-ee10-4c84-9045-773d8fe16c35",
  "code" : "LL",
  "display" : "Critical low",
  "version" : "2018-08-12"
}