{
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  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ParameterizedDataType",
  "property" : [ {
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  }, {
    "code" : "internalId",
    "valueCode" : "10764"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "SET<T>"
  } ],
  "codesystem" : "a18417e6-a2de-565a-bfd7-0c547e7648fe",
  "concept_id" : "2ef25880-1636-5d16-b766-e52ca9c3a23c",
  "ancestors" : {
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    "SET<T>" : 1
  },
  "id" : "87375c0d-1a38-4176-8613-f6cee22e0573",
  "code" : "IVL<T>",
  "display" : "Interval",
  "version" : "2.0.1"
}