{
  "package" : "hl7.terminology.r5@6.3.0",
  "definition" : "A substance that is fully defined by an organic or inorganic chemical formula, includes mixtures of other chemical substances. Refine using, e.g., IUPAC codes.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-EntityClass",
  "property" : [ {
    "code" : "status",
    "valueCode" : "active"
  }, {
    "code" : "internalId",
    "valueCode" : "10888"
  }, {
    "code" : "Name:Class",
    "valueCode" : "ChemicalSubstance"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "MAT"
  } ],
  "codesystem" : "a43bb878-326b-54f3-8f86-f27a69da3706",
  "concept_id" : "b0f8ece7-b9c8-596b-98b1-3038c22e0e4e",
  "ancestors" : {
    "ENT" : 2,
    "MAT" : 1,
    "CHEM" : 0
  },
  "id" : "90476829-7661-4a0a-a966-b5c0f974cd9e",
  "code" : "CHEM",
  "display" : "chemical substance",
  "version" : "3.0.0"
}