{
  "resourceType": "CodeSystem",
  "id": "evidence-variable-event",
  "meta": {
    "lastUpdated": "2026-05-20T15:02:53.575+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 evidence-variable-event\u003c/b\u003e\u003c/p\u003e\u003ca name\u003d\"evidence-variable-event\"\u003e \u003c/a\u003e\u003ca name\u003d\"hcevidence-variable-event\"\u003e \u003c/a\u003e\u003cp\u003eThis case-sensitive code system \u003ccode\u003ehttp://hl7.org/fhir/evidence-variable-event\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\"\u003estudy-start\u003ca name\u003d\"evidence-variable-event-study-start\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eStudy Start\u003c/td\u003e\u003ctd\u003eThe time of enrollment for the study participant\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003etreatment-start\u003ca name\u003d\"evidence-variable-event-treatment-start\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eStart of Treatment\u003c/td\u003e\u003ctd\u003eThe time of initiation of the treatment\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003econdition-detection\u003ca name\u003d\"evidence-variable-event-condition-detection\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eDetection of Condition\u003c/td\u003e\u003ctd\u003eThe time of first detection of the condition\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003econdition-treatment\u003ca name\u003d\"evidence-variable-event-condition-treatment\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eTreatment of Condition\u003c/td\u003e\u003ctd\u003eThe time of first treatment of the condition\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003ehospital-admission\u003ca name\u003d\"evidence-variable-event-hospital-admission\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eHospital Admission\u003c/td\u003e\u003ctd\u003eThe time of admission to the hospital\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003ehospital-discharge\u003ca name\u003d\"evidence-variable-event-hospital-discharge\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eHospital Discharge\u003c/td\u003e\u003ctd\u003eThe time of discharge from the hospital\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003eoperative-procedure\u003ca name\u003d\"evidence-variable-event-operative-procedure\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eOperative Procedure\u003c/td\u003e\u003ctd\u003eThe time of surgery\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": 5
    }
  ],
  "url": "http://hl7.org/fhir/evidence-variable-event",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.4.1955"
    }
  ],
  "version": "6.0.0-ballot4",
  "name": "EvidenceVariableEvent",
  "title": "Evidence Variable Event",
  "status": "active",
  "experimental": false,
  "date": "2021-01-05T10:01:24+11:00",
  "publisher": "HL7 International / Clinical Decision Support",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    },
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/dss"
        }
      ]
    }
  ],
  "description": "The event used as a base point (reference point) in time.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "caseSensitive": true,
  "valueSet": "http://hl7.org/fhir/ValueSet/evidence-variable-event",
  "content": "complete",
  "concept": [
    {
      "code": "study-start",
      "display": "Study Start",
      "definition": "The time of enrollment for the study participant"
    },
    {
      "code": "treatment-start",
      "display": "Start of Treatment",
      "definition": "The time of initiation of the treatment"
    },
    {
      "code": "condition-detection",
      "display": "Detection of Condition",
      "definition": "The time of first detection of the condition"
    },
    {
      "code": "condition-treatment",
      "display": "Treatment of Condition",
      "definition": "The time of first treatment of the condition"
    },
    {
      "code": "hospital-admission",
      "display": "Hospital Admission",
      "definition": "The time of admission to the hospital"
    },
    {
      "code": "hospital-discharge",
      "display": "Hospital Discharge",
      "definition": "The time of discharge from the hospital"
    },
    {
      "code": "operative-procedure",
      "display": "Operative Procedure",
      "definition": "The time of surgery"
    }
  ]
}