{
  "resourceType": "CodeSystem",
  "id": "task-performer-function-code",
  "meta": {
    "lastUpdated": "2026-05-25T22:13:44.118+00:00"
  },
  "text": {
    "status": "generated",
    "div": "\u003cdiv xmlns\u003d\"http://www.w3.org/1999/xhtml\"\u003e\u003cp class\u003d\"res-header-id\"\u003e\u003cb\u003eGenerated Narrative: CodeSystem task-performer-function-code\u003c/b\u003e\u003c/p\u003e\u003ca name\u003d\"task-performer-function-code\"\u003e \u003c/a\u003e\u003ca name\u003d\"hctask-performer-function-code\"\u003e \u003c/a\u003e\u003cp\u003eThis case-sensitive code system \u003ccode\u003ehttp://hl7.org/fhir/task-performer-function-code\u003c/code\u003e defines the following codes:\u003c/p\u003e\u003ctable class\u003d\"codes\"\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003e\u003cb\u003eCode\u003c/b\u003e\u003c/td\u003e\u003ctd\u003e\u003cb\u003eDisplay\u003c/b\u003e\u003c/td\u003e\u003ctd\u003e\u003cb\u003eDefinition\u003c/b\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003eperformer\u003ca name\u003d\"task-performer-function-code-performer\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003ePerformer\u003c/td\u003e\u003ctd\u003eA person, non-person living subject, organization or device that who actually and principally carries out the Task action.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003everifier\u003ca name\u003d\"task-performer-function-code-verifier\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eVerifier\u003c/td\u003e\u003ctd\u003eA person who verifies the correctness and appropriateness of the Task action (plan, order, event, etc.) and hence takes on accountability.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003ewitness\u003ca name\u003d\"task-performer-function-code-witness\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eWitness\u003c/td\u003e\u003ctd\u003eA person witnessing the action happening without doing anything. A witness is not necessarily aware, much less approves of anything stated in the service event.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003ereferrer\u003ca name\u003d\"task-performer-function-code-referrer\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eReferrer\u003c/td\u003e\u003ctd\u003eA person having referred the action of the Task to the performer (referring physician).\u003c/td\u003e\u003c/tr\u003e\u003c/table\u003e\u003c/div\u003e"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "oo"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "informative"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/task-performer-function-code",
  "version": "6.0.0-ballot4",
  "name": "TaskPerformerFunctionCode",
  "title": "Task Performer Function Code",
  "status": "active",
  "experimental": false,
  "date": "2025-03-12T10:00:00+08:00",
  "publisher": "HL7 (FHIR Project)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    }
  ],
  "description": "The performer of the task.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "caseSensitive": true,
  "valueSet": "http://hl7.org/fhir/ValueSet/task-performer-function-code",
  "content": "complete",
  "concept": [
    {
      "code": "performer",
      "display": "Performer",
      "definition": "A person, non-person living subject, organization or device that who actually and principally carries out the Task action."
    },
    {
      "code": "verifier",
      "display": "Verifier",
      "definition": "A person who verifies the correctness and appropriateness of the Task action (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."
    },
    {
      "code": "referrer",
      "display": "Referrer",
      "definition": "A person having referred the action of the Task to the performer (referring physician)."
    }
  ]
}