{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "WHO record # drug codes (6 digit)",
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0396",
  "property" : [ {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v2-concComment",
    "code" : "v2-concComment",
    "valueString" : "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."
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#status",
    "code" : "status",
    "valueCode" : "A"
  } ],
  "codesystem" : "e39b54bc-250f-5dcb-bad5-a06bddcbf336",
  "concept_id" : "e571fea2-6324-5204-8e1d-dccee4e1c4e4",
  "ancestors" : {
    "W1" : 0
  },
  "id" : "fc0287bb-2607-45ba-bd9f-73dfe6dc24b7",
  "code" : "W1",
  "display" : "WHO record # drug codes (6 digit)",
  "version" : "4.1.0"
}