# Relatedness Assessment (2.8.1 - 1.0.0) - HL7 v2.8.1 Vocabulary v0.2.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Relatedness Assessment (2.8.1 - 1.0.0)**

## CodeSystem: Relatedness Assessment (2.8.1 - 1.0.0) (Experimental) 

| | |
| :--- | :--- |
| *Official URL*:http://terminology.hl7.org/v2plusvocab/CodeSystem/relatednessAssessment | *Version*:1.0.0 |
| Active as of 2026-03-13 | *Computable Name*:RelatednessAssessment |
| *Other Identifiers:*OID:2.16.840.1.113883.18.145, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0250 | |
| **Copyright/Legal**: HL7 Inc., 2026 | |

 
HL7-defined code system of concepts used to provide an estimate of whether an issue with a product was the cause of an event. Used in HL7 Version 2.x messaging in the PCR segment. 

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

* [Hl7VSrelatednessAssessment](ValueSet-hl7VSrelatednessAssessment.md)



## Resource Content

```json
{
  "resourceType" : "CodeSystem",
  "id" : "relatednessAssessment",
  "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" : "0250"
  }],
  "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/relatednessAssessment",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.18.145"
  },
  {
    "system" : "urn:ietf:rfc:3986",
    "value" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0250"
  }],
  "version" : "1.0.0",
  "name" : "RelatednessAssessment",
  "title" : "Relatedness Assessment (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" : "HL7-defined code system of concepts used to provide an estimate of whether an issue with a  product was the cause of an event.  Used in HL7 Version 2.x messaging in the PCR 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" : "H",
    "display" : "Highly probable",
    "definition" : "Highly probable",
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  },
  {
    "code" : "I",
    "display" : "Improbable",
    "definition" : "Improbable",
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  },
  {
    "code" : "M",
    "display" : "Moderately probable",
    "definition" : "Moderately probable",
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  },
  {
    "code" : "N",
    "display" : "Not related",
    "definition" : "Not related",
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  },
  {
    "code" : "S",
    "display" : "Somewhat probable",
    "definition" : "Somewhat probable",
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  }]
}

```
