# Alert Device Code (2.8.1 - 1.0.0) - HL7 v2.8.1 Vocabulary v0.2.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Alert Device Code (2.8.1 - 1.0.0)**

## CodeSystem: Alert Device Code (2.8.1 - 1.0.0) (Experimental) 

| | |
| :--- | :--- |
| *Official URL*:http://terminology.hl7.org/v2plusvocab/CodeSystem/alertDevice | *Version*:1.0.0 |
| Active as of 2026-03-13 | *Computable Name*:AlertDevice |
| *Other Identifiers:*OID:2.16.840.1.113883.18.278, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0437 | |
| **Copyright/Legal**: HL7 Inc., 2026 | |

 
Code system of concepts specifying any type of allergy alert device the patient may be carrying or wearing. 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: 

* [Hl7VSalertDeviceCode](ValueSet-hl7VSalertDeviceCode.md)



## Resource Content

```json
{
  "resourceType" : "CodeSystem",
  "id" : "alertDevice",
  "extension" : [{
    "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated",
    "valueString" : "2.8.1"
  },
  {
    "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory",
    "valueString" : "generate correct history somehow"
  },
  {
    "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo",
    "valueString" : "0437"
  }],
  "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/alertDevice",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.18.278"
  },
  {
    "system" : "urn:ietf:rfc:3986",
    "value" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0437"
  }],
  "version" : "1.0.0",
  "name" : "AlertDevice",
  "title" : "Alert Device Code (2.8.1 - 1.0.0)",
  "status" : "active",
  "experimental" : true,
  "date" : "2026-03-13T11:11:38+00:00",
  "publisher" : "HL7/FO",
  "contact" : [{
    "name" : "HL7/FO",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org"
    }]
  }],
  "description" : "Code system of concepts specifying any type of allergy alert device the patient may be carrying or wearing.  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" : "B",
    "display" : "Bracelet",
    "definition" : "Bracelet",
    "designation" : [{
      "language" : "de",
      "value" : "Armband"
    }],
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.4"
    }]
  },
  {
    "code" : "N",
    "display" : "Necklace",
    "definition" : "Necklace",
    "designation" : [{
      "language" : "de",
      "value" : "Kette"
    }],
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.4"
    }]
  },
  {
    "code" : "W",
    "display" : "Wallet Card",
    "definition" : "Wallet Card",
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.4"
    }]
  }]
}

```
