{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Gas Chromatography/Mass Spectroscopy",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationMethod",
  "property" : [ ],
  "codesystem" : "82c77d18-2f57-5ed8-9365-64a5fa72e7d3",
  "concept_id" : "bc5309c1-df6c-5ee1-a7c1-7b9ed1b3931e",
  "ancestors" : {
    "0258" : 0
  },
  "id" : "ada3fcb5-23c6-495c-9d85-7a50728dd7f6",
  "code" : "0258",
  "display" : "GC/MS",
  "version" : "2018-08-12"
}