{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "World Health organization record number code. A unique sequential number is assigned to each unique single component drug and to each multi-component drug. Eight digits are allotted to each such code, six to identify the active agent, and 2 to identify the salt, of single content drugs. Six digits are assigned to each unique combination of drugs in a dispensing unit. The six digit code is identified by W1, the 8 digit code by W2.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-CodeSystem",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#status",
    "code" : "status",
    "valueCode" : "active"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id",
    "code" : "internalId",
    "valueCode" : "11119"
  } ],
  "codesystem" : "6d234e1e-b4a8-5559-96c5-0555b0a2dc51",
  "concept_id" : "3968bd53-b9f5-5c1e-a932-c8ac15ecb5d5",
  "ancestors" : {
    "W1-W2" : 0
  },
  "id" : "0a2a47f2-0c49-46bd-90a3-1e7016a88418",
  "code" : "W1-W2",
  "display" : "WHO rec# drug codes",
  "version" : "2.2.1"
}