Definition for Code SystemVariable Role

<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="variable-role"/> 
  <meta> 
    
    

    <lastUpdated value="2025-11-24T20:46:00.100+00:00"/> 
  </meta> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p class="res-header-id">
        <b> Generated Narrative: CodeSystem variable-role</b> 
      </p> 
      <a name="variable-role"> </a> 
      <a name="hcvariable-role"> </a> 
      
      display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border:
       1px solid #8da1b4; border-radius: 5px; line-height: 60%
        
        Profile: 
          
        
      

      <p> This case-sensitive code system 
        <code> http://hl7.org/fhir/variable-role</code>  defines the following codes:
      </p> 
      <table class="codes">
        <tr> 
          <td style="white-space:nowrap">
            <b> Code</b> 
          </td> 
          <td> 
            <b> Display</b> 
          </td> 
          <td> 
            <b> Definition</b> 
          </td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">population
            <a name="variable-role-population"> </a> 
          </td> 
          <td> Population</td> 
          <td> The group from which the observations were obtained.</td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">exposure
            <a name="variable-role-exposure"> </a> 
          </td> 
          <td> Exposure</td> 
          <td> An independant variable of primary interest.</td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">outcome
            <a name="variable-role-outcome"> </a> 
          </td> 
          <td> Outcome</td> 
          <td> A dependent variable.</td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">covariate
            <a name="variable-role-covariate"> </a> 
          </td> 
          <td> Covariate</td> 
          <td> A variable that influences the exposure or outcome.</td> 
        </tr> 
      </table> 
    </div> 
  </text> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cds"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    

    <valueCode value="normative"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1"/> 
  </extension> 
  <url value="http://hl7.org/fhir/variable-role"/> 
  <identifier> 
    <system value="urn:ietf:rfc:3986"/> 
    <value value="urn:oid:2.16.840.1.113883.4.642.4.2136"/> 
  </identifier> 
  <version value="6.0.0-ballot3"/> 
  <name value="Variable Role"/> 
  <title value="VariableRole"/> 
  <status value="active"/> 
  <experimental value="false"/> 
  <date value="2023-11-08T16:55:11+11:00"/> 
  <publisher value="HL7 (FHIR Project)"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/fhir"/> 
    </telecom> 
    <telecom> 
      <system value="email"/> 
      <value value="fhir@lists.hl7.org"/> 
    </telecom> 
  </contact> 
  <description value="The role that the variable plays."/> 
  <jurisdiction> 
    <coding> 
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> 
      <code value="001"/> 
      <display value="World"/> 
    </coding> 
  </jurisdiction> 
  <caseSensitive value="true"/> 
  <valueSet value="http://hl7.org/fhir/ValueSet/variable-role"/> 
  <content value="complete"/> 
  <concept> 
    <code value="population"/> 
    <display value="Population"/> 
    <definition value="The group from which the observations were obtained."/> 
  </concept> 
  <concept> 
    <code value="exposure"/> 
    <display value="Exposure"/> 
    <definition value="An independant variable of primary interest."/> 
  </concept> 
  <concept> 
    <code value="outcome"/> 
    <display value="Outcome"/> 
    <definition value="A dependent variable."/> 
  </concept> 
  <concept> 
    <code value="covariate"/> 
    <display value="Covariate"/> 
    <definition value="A variable that influences the exposure or outcome."/> 
  </concept> 


</

CodeSystem

>