{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Bioassay, Embryo Lethal Dose 50",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationMethod",
  "property" : [ ],
  "codesystem" : "82c77d18-2f57-5ed8-9365-64a5fa72e7d3",
  "concept_id" : "3e40cffc-4342-5f69-9ae0-2d270d1477fd",
  "ancestors" : {
    "0029" : 0
  },
  "id" : "50ea1862-3e76-40d6-9742-7852b1ed09e0",
  "code" : "0029",
  "display" : "Embryo lethal dose 50",
  "version" : "2018-08-12"
}