# Response Level (2.5.1 - 1.0.0) - HL7 v2.5.1 Vocabulary v0.1.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Response Level (2.5.1 - 1.0.0)**

## CodeSystem: Response Level (2.5.1 - 1.0.0) (Experimental) 

| | |
| :--- | :--- |
| *Official URL*:http://terminology.hl7.org/v2plusvocab/CodeSystem/responseLevel | *Version*:1.0.0 |
| Active as of 2026-01-27 | *Computable Name*:ResponseLevel |
| *Other Identifiers:*OID:2.16.840.1.113883.18.94 | |
| **Copyright/Legal**: HL7 Inc., 2026 | |

 
HL7-defined code system of concepts specifying application response levels defined for a given Master File Message at the MFE segment level, and used for MFN-Master File Notification message. Specifies additional detail (beyond MSH-15 - Accept Acknowledgment Type and MSH-16 - Application Acknowledgment Type) for application-level acknowledgment paradigms for Master Files transactions. Used in HL7 Version 2.x messaging in the MFI segment. 

 This Code system is referenced in the content logical definition of the following value sets: 

* [Hl7VSresponseLevel](ValueSet-hl7VSresponseLevel.md)



## Resource Content

```json
{
  "resourceType" : "CodeSystem",
  "id" : "responseLevel",
  "extension" : [
    {
      "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated",
      "valueString" : "2.5.1"
    },
    {
      "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory",
      "valueString" : "generate correct history somehow"
    },
    {
      "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo",
      "valueString" : "0179"
    }
  ],
  "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/responseLevel",
  "identifier" : [
    {
      "system" : "urn:ietf:rfc:3986",
      "value" : "urn:oid:2.16.840.1.113883.18.94"
    }
  ],
  "version" : "1.0.0",
  "name" : "ResponseLevel",
  "title" : "Response Level (2.5.1 - 1.0.0)",
  "status" : "active",
  "experimental" : true,
  "date" : "2026-01-27T19:29:18+00:00",
  "publisher" : "HL7/FO",
  "contact" : [
    {
      "name" : "HL7/FO",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.hl7.org"
        }
      ]
    }
  ],
  "description" : "HL7-defined code system of concepts specifying application response levels defined for a given Master File Message at the MFE segment level, and used for MFN-Master File Notification message.  Specifies additional detail (beyond MSH-15 - Accept Acknowledgment Type and MSH-16 - Application Acknowledgment Type) for application-level acknowledgment paradigms for Master Files transactions.  Used in HL7 Version 2.x messaging in the MFI segment.",
  "copyright" : "HL7 Inc., 2026",
  "caseSensitive" : true,
  "compositional" : false,
  "content" : "complete",
  "property" : [
    {
      "code" : "versionIntroduced",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced",
      "description" : "version when was this code introduced",
      "type" : "string"
    },
    {
      "code" : "versionDeprecated",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated",
      "description" : "version when was this code deprecated",
      "type" : "string"
    },
    {
      "code" : "status",
      "uri" : "http://hl7.org/fhir/concept-properties#status",
      "description" : "A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired",
      "type" : "code"
    },
    {
      "code" : "comment",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment",
      "description" : "A string that provides additional detail pertinent to the use or understanding of the concept",
      "type" : "string"
    },
    {
      "code" : "usage",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage",
      "description" : "usage notes for this code",
      "type" : "string"
    },
    {
      "code" : "modified",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified",
      "description" : "date of last modification",
      "type" : "dateTime"
    }
  ],
  "concept" : [
    {
      "code" : "AL",
      "display" : "Always",
      "definition" : "Always. All MFA segments (whether denoting errors or not) must be returned via the application-level acknowledgment message",
      "designation" : [
        {
          "language" : "de",
          "value" : "Rückmeldung immer erforderlich"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.2"
        }
      ]
    },
    {
      "code" : "ER",
      "display" : "Error/Reject conditions only",
      "definition" : "Error/Reject conditions only.  Only MFA segments denoting errors must be returned via the application-level acknowledgment for this message",
      "designation" : [
        {
          "language" : "de",
          "value" : "Rückmeldung bei auftretenden Fehlern"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.2"
        }
      ]
    },
    {
      "code" : "NE",
      "display" : "Never",
      "definition" : "Never.  No application-level response needed",
      "designation" : [
        {
          "language" : "de",
          "value" : "Keine Rückmeldung erforderlich"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.2"
        }
      ]
    },
    {
      "code" : "SU",
      "display" : "Success",
      "definition" : "Success.  Only MFA segments denoting success must be returned via the application-level acknowledgment for this message",
      "designation" : [
        {
          "language" : "de",
          "value" : "Rückmeldung bei erfolgreicher Verarbeitung"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.2"
        }
      ]
    }
  ]
}

```
