{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Any organic or inorganic substance of a particular molecular identity, including -- (i) any combination of such substances occurring in whole or in part as a result of a chemical reaction or occurring in nature and (ii) any element or uncombined radical (http://www.epa.gov/opptintr/import-export/pubs/importguide.pdf).",
  "system" : "http://terminology.hl7.org/CodeSystem/substance-category",
  "property" : [ ],
  "codesystem" : "c0804701-d81a-5ef0-af05-f7a63e992dc7",
  "concept_id" : "78ee14d4-7afb-59c7-a25a-f421988ecbef",
  "ancestors" : {
    "chemical" : 0
  },
  "id" : "b44f1294-4653-4374-9c1b-5dc381e59e94",
  "code" : "chemical",
  "display" : "Chemical",
  "version" : "4.0.1"
}