Medication usage category codes

{
  "description" : "Medication Status Codes",
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    "lastUpdated" : "2019-11-01T09:29:23.356+11:00",
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  "publisher" : "FHIR Project team",
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  "name" : "Medication usage category codes",
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  "resourceType" : "CodeSystem",
  "title" : "Medication usage category codes",
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  "status" : "draft",
  "id" : "medication-statement-category",
  "valueSet" : "http://hl7.org/fhir/ValueSet/medication-statement-category",
  "url" : "http://terminology.hl7.org/CodeSystem/medication-statement-category",
  "identifier" : [ {
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.1120"
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