{
  "resourceType": "CodeSystem",
  "id": "messageheader-response-request",
  "meta": {
    "lastUpdated": "2026-05-20T15:02:53.575+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 messageheader-response-request\u003c/b\u003e\u003c/p\u003e\u003ca name\u003d\"messageheader-response-request\"\u003e \u003c/a\u003e\u003ca name\u003d\"hcmessageheader-response-request\"\u003e \u003c/a\u003e\u003cp\u003eThis case-sensitive code system \u003ccode\u003ehttp://hl7.org/fhir/messageheader-response-request\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\"\u003ealways\u003ca name\u003d\"messageheader-response-request-always\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eAlways\u003c/td\u003e\u003ctd\u003einitiator expects a response for this message.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003eon-error\u003ca name\u003d\"messageheader-response-request-on-error\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eError/reject conditions only\u003c/td\u003e\u003ctd\u003einitiator expects a response only if in error.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003enever\u003ca name\u003d\"messageheader-response-request-never\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eNever\u003c/td\u003e\u003ctd\u003einitiator does not expect a response.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003eon-success\u003ca name\u003d\"messageheader-response-request-on-success\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eSuccessful completion only\u003c/td\u003e\u003ctd\u003einitiator expects a response only if successful.\u003c/td\u003e\u003c/tr\u003e\u003c/table\u003e\u003c/div\u003e"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "inm"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "normative"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/messageheader-response-request",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.4.925"
    },
    {
      "use": "old",
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.1.844"
    }
  ],
  "version": "6.0.0-ballot4",
  "name": "MessageheaderResponseRequest",
  "title": "messageheader-response-request",
  "status": "active",
  "experimental": false,
  "date": "2021-01-05T10:01:24+11:00",
  "publisher": "HL7 (FHIR Project)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    }
  ],
  "description": "HL7-defined table of codes which identify conditions under which acknowledgments are required to be returned in response to a message.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "caseSensitive": true,
  "valueSet": "http://hl7.org/fhir/ValueSet/messageheader-response-request",
  "content": "complete",
  "concept": [
    {
      "code": "always",
      "display": "Always",
      "definition": "initiator expects a response for this message."
    },
    {
      "code": "on-error",
      "display": "Error/reject conditions only",
      "definition": "initiator expects a response only if in error."
    },
    {
      "code": "never",
      "display": "Never",
      "definition": "initiator does not expect a response."
    },
    {
      "code": "on-success",
      "display": "Successful completion only",
      "definition": "initiator expects a response only if successful."
    }
  ]
}