http://terminology.hl7.org/CodeSystem/med-admin-perform-function|4.0.1

{
  "description" : "MedicationAdministration Performer Function Codes",
  "compose" : null,
  "package" : "hl7.fhir.r4.core@4.0.1",
  "date" : null,
  "meta" : {
    "profile" : [ "http://hl7.org/fhir/StructureDefinition/shareablecodesystem" ],
    "lastUpdated" : "2019-11-01T09:29:23.356+11:00"
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  "publisher" : "FHIR Project team",
  "content" : "complete",
  "name" : "MedicationAdministration Performer Function Codes",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "Medication administration  performer  function  codes",
  "supliment" : null,
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "phx"
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    "valueCode" : "draft"
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    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 1
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  "status" : "draft",
  "id" : "1f0d8523-8e3a-5d99-82f1-833d14da9397",
  "valueSet" : "http://hl7.org/fhir/ValueSet/med-admin-perform-function",
  "url" : "http://terminology.hl7.org/CodeSystem/med-admin-perform-function",
  "identifier" : [ {
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.1112",
    "system" : "urn:ietf:rfc:3986"
  } ],
  "concept" : [ {
    "code" : "performer",
    "display" : "Performer",
    "definition" : "A person, non-person living subject, organization or device that who actually and principally carries out the action"
  }, {
    "code" : "verifier",
    "display" : "Verifier",
    "definition" : "A person who verifies the correctness and appropriateness of the service (plan, order, event, etc.) and hence takes on accountability."
  }, {
    "code" : "witness",
    "display" : "Witness",
    "definition" : "A person witnessing the action happening without doing anything. A witness is not necessarily aware, much less approves of anything stated in the service event. Example for a witness is students watching an operation or an advanced directive witness."
  } ],
  "caseSensitive" : true,
  "version" : "4.0.1",
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