# Allergy Clinical Status (2.5.1 - 1.0.0) - HL7 v2.5.1 Vocabulary v0.1.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Allergy Clinical Status (2.5.1 - 1.0.0)**

## CodeSystem: Allergy Clinical Status (2.5.1 - 1.0.0) (Experimental) 

| | |
| :--- | :--- |
| *Official URL*:http://terminology.hl7.org/v2plusvocab/CodeSystem/allergyClinicalStatus | *Version*:1.0.0 |
| Active as of 2026-01-27 | *Computable Name*:AllergyClinicalStatus |
| *Other Identifiers:*OID:2.16.840.1.113883.18.279 | |
| **Copyright/Legal**: HL7 Inc., 2026 | |

 
Code system of concepts specifying the verification status for the allergy. Used in HL7 Version 2.x messaging in the IAM segment. 

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

* [Hl7VSallergyClinicalStatus](ValueSet-hl7VSallergyClinicalStatus.md)



## Resource Content

```json
{
  "resourceType" : "CodeSystem",
  "id" : "allergyClinicalStatus",
  "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" : "0438"
    }
  ],
  "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/allergyClinicalStatus",
  "identifier" : [
    {
      "system" : "urn:ietf:rfc:3986",
      "value" : "urn:oid:2.16.840.1.113883.18.279"
    }
  ],
  "version" : "1.0.0",
  "name" : "AllergyClinicalStatus",
  "title" : "Allergy Clinical Status (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" : "Code system of concepts specifying the verification status for the allergy.  Used in HL7 Version 2.x messaging in the IAM 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" : "C",
      "display" : "Confirmed or verified",
      "definition" : "Confirmed or verified",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "D",
      "display" : "Doubt raised",
      "definition" : "Doubt raised",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "E",
      "display" : "Erroneous",
      "definition" : "Erroneous",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "I",
      "display" : "Confirmed but inactive",
      "definition" : "Confirmed but inactive",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "P",
      "display" : "Pending",
      "definition" : "Pending",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "S",
      "display" : "Suspect",
      "definition" : "Suspect",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "U",
      "display" : "Unconfirmed",
      "definition" : "Unconfirmed",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    }
  ]
}

```
