{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0477",
  "property" : [ ],
  "codesystem" : "77452b0f-27bb-59f9-9aa2-bf05bd5077ec",
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  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "Includes drugs that have a high potential for abuse, no currently accepted medical use in the United States and a lack of accepted safety for use under medical supervision."
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}