{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "A substance that causes an allergic reaction.",
  "system" : "http://terminology.hl7.org/CodeSystem/substance-category",
  "property" : [ ],
  "codesystem" : "3a6d9548-f4d4-5347-a279-30cc0f7d07ec",
  "concept_id" : "ecb9fd1a-a22e-56db-87b9-a34699e90670",
  "ancestors" : {
    "allergen" : 0
  },
  "id" : "d4b20b57-3fac-4b36-919b-240db850846f",
  "code" : "allergen",
  "display" : "Allergen",
  "version" : "1.0.1"
}