{
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  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ActCode",
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    "code" : "notSelectable",
    "valueBoolean" : true
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#status",
    "code" : "status",
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  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id",
    "code" : "internalId",
    "valueCode" : "20916"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "subsumedBy",
    "valueCode" : "_ActControlVariable"
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  "codesystem" : "cbab4a87-49ca-5502-88d6-f33b5f07237f",
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    "_ECGControlVariable" : 0
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  "display" : "ECGControlVariable",
  "version" : "9.0.0"
}