{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "**Definition:**\\r\\n\\r\\nThe set of observation type concepts that can be used to express pre-conditions to a particular dosage definition.\\r\\n\\r\\nRationale: Used to constrain the set of observations to those related to the applicability of a dosage, such as height, weight, age, pregnancy, liver function, kidney function, etc. For example, in drug master-file type records indicating when a specified dose is applicable.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ActCode",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#notSelectable",
    "code" : "notSelectable",
    "valueBoolean" : true
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#status",
    "code" : "status",
    "valueCode" : "retired"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id",
    "code" : "internalId",
    "valueCode" : "21714"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "subsumedBy",
    "valueCode" : "_ObservationType"
  } ],
  "codesystem" : "cbab4a87-49ca-5502-88d6-f33b5f07237f",
  "concept_id" : "c6c29f30-47ef-53b2-82e5-119d438bf0a8",
  "ancestors" : {
    "_ObservationType" : 1,
    "_ObservationDosageDefinitionPreconditionType" : 0
  },
  "id" : "a09b21e5-0ab9-4e53-af0f-2f3b0a6a8f93",
  "code" : "_ObservationDosageDefinitionPreconditionType",
  "display" : "observation dosage definition precondition type",
  "version" : "9.0.0"
}