{
  "resourceType": "CodeSystem",
  "id": "variable-role",
  "meta": {
    "lastUpdated": "2026-07-03T14:29:03.795+00:00"
  },
  "text": {
    "status": "generated",
    "div": "\u003cdiv xmlns\u003d\"http://www.w3.org/1999/xhtml\"\u003e\u003cp class\u003d\"res-header-id\"\u003e\u003cb\u003eGenerated Narrative: CodeSystem variable-role\u003c/b\u003e\u003c/p\u003e\u003ca name\u003d\"variable-role\"\u003e \u003c/a\u003e\u003ca name\u003d\"hcvariable-role\"\u003e \u003c/a\u003e\u003cp\u003eThis case-sensitive code system \u003ccode\u003ehttp://hl7.org/fhir/variable-role\u003c/code\u003e defines the following codes:\u003c/p\u003e\u003ctable class\u003d\"codes\"\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003e\u003cb\u003eCode\u003c/b\u003e\u003c/td\u003e\u003ctd\u003e\u003cb\u003eDisplay\u003c/b\u003e\u003c/td\u003e\u003ctd\u003e\u003cb\u003eDefinition\u003c/b\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003epopulation\u003ca name\u003d\"variable-role-population\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003ePopulation\u003c/td\u003e\u003ctd\u003eThe group from which the observations were obtained.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003eexposure\u003ca name\u003d\"variable-role-exposure\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eExposure\u003c/td\u003e\u003ctd\u003eAn independent variable of primary interest.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003eoutcome\u003ca name\u003d\"variable-role-outcome\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eOutcome\u003c/td\u003e\u003ctd\u003eA dependent variable.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003ecovariate\u003ca name\u003d\"variable-role-covariate\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eCovariate\u003c/td\u003e\u003ctd\u003eA variable that influences the exposure or outcome.\u003c/td\u003e\u003c/tr\u003e\u003c/table\u003e\u003c/div\u003e"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "cds"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "normative"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/variable-role",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.4.2136"
    }
  ],
  "version": "6.0.0-ballot4",
  "name": "VariableRole",
  "title": "Variable Role",
  "status": "active",
  "experimental": false,
  "date": "2023-11-08T16:55:11+11:00",
  "publisher": "HL7 (FHIR Project)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    }
  ],
  "description": "The role that the variable plays.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "caseSensitive": true,
  "valueSet": "http://hl7.org/fhir/ValueSet/variable-role",
  "content": "complete",
  "concept": [
    {
      "code": "population",
      "display": "Population",
      "definition": "The group from which the observations were obtained."
    },
    {
      "code": "exposure",
      "display": "Exposure",
      "definition": "An independent variable of primary interest."
    },
    {
      "code": "outcome",
      "display": "Outcome",
      "definition": "A dependent variable."
    },
    {
      "code": "covariate",
      "display": "Covariate",
      "definition": "A variable that influences the exposure or outcome."
    }
  ]
}