HL7 Terminology (THO)
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This page is part of the HL7 Terminology (v7.2.0: Release) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

: StateChangeReason

Active as of 2026-03-05 Maturity Level: 1

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{
  "resourceType" : "CodeSystem",
  "id" : "state-change-reason",
  "meta" : {
    "lastUpdated" : "2020-04-09T21:10:28.568+00:00"
  },
  "language" : "en",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem state-change-reason</b></p><a name=\"state-change-reason\"> </a><a name=\"hcstate-change-reason\"> </a><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Last updated: 2020-04-09 21:10:28+0000</p></div><p><b>Properties</b></p><p><b>This code system defines the following properties for its concepts</b></p><table class=\"grid\"><tr><td><b>Name</b></td><td><b>Code</b></td><td><b>URI</b></td><td><b>Type</b></td><td><b>Description</b></td></tr><tr><td>Status</td><td>status</td><td>http://hl7.org/fhir/concept-properties#status</td><td>code</td><td>Designation of a concept's state. Normally is not populated unless the state is retired.</td></tr></table><p><b>Concepts</b></p><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/state-change-reason</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><td><b>Deprecated</b></td></tr><tr><td style=\"white-space:nowrap\">unable-to-participate<a name=\"state-change-reason-unable-to-participate\"> </a></td><td>Unable to Participate</td><td>The subject (ResearchSubject) is not able to take part in the ResearchStudy. Examples: subject has moved away; subject cannot drive and therefore unable to participate, etc.</td><td/></tr><tr><td style=\"white-space:nowrap\">unwilling-to-participate<a name=\"state-change-reason-unwilling-to-participate\"> </a></td><td>Unwilling to Participate</td><td>The subject (ResearchSubject) is refusing to take part in the ResearchStudy. Note: Subject refusal is a synonymous term and is used in some studies.</td><td/></tr><tr><td style=\"white-space:nowrap\">screening-failure<a name=\"state-change-reason-screening-failure\"> </a></td><td>Screening Failure</td><td>The failure of the potential subject (ResearchSubject) of meeting one or more criteria required for participation in a trial.</td><td/></tr><tr><td style=\"white-space:nowrap\">intervention-complete<a name=\"state-change-reason-intervention-complete\"> </a></td><td>Intervention Complete</td><td>The subject (ResearchSubject) has finished the planned protocol-specified treatment phase.</td><td/></tr><tr><td style=\"white-space:nowrap\">follow-up-complete<a name=\"state-change-reason-follow-up-complete\"> </a></td><td>Follow-up Complete</td><td>The subject (ResearchSubject) has finished the planned protocol-specified follow-up phase.</td><td/></tr><tr><td style=\"white-space:nowrap\">adverse-event<a name=\"state-change-reason-adverse-event\"> </a></td><td>Adverse Event</td><td>The subject (ResearchSubject) has experienced any unfavorable or unintended disease, sign, or symptom that is temporally associated with the use of a medical treatment or procedure and that may or may not be considered related to the medical treatment or procedure.</td><td/></tr><tr><td style=\"white-space:nowrap\">consent-withdrawn<a name=\"state-change-reason-consent-withdrawn\"> </a></td><td>Consent Withdrawn</td><td>The subject (ResearchSubject) has revoked permission to participate in the study or one or more components of the study.</td><td/></tr><tr><td style=\"white-space:nowrap\">non-compliance<a name=\"state-change-reason-non-compliance\"> </a></td><td>Non-compliance</td><td>The subject (ResearchSubject) has failed to follow medical advice, take medication as directed, or adhere to a prescribed course of treatment.</td><td/></tr><tr><td style=\"white-space:nowrap\">informedConsentSigned<a name=\"state-change-reason-informedConsentSigned\"> </a></td><td>Informed consent signed</td><td>The subject (ResearchSubject) has signed informed consent.</td><td/></tr><tr style=\"background-color: #ffeeee\"><td style=\"white-space:nowrap\">intOrObsComplete<a name=\"state-change-reason-intOrObsComplete\"> </a></td><td>intervention or observation complete</td><td>intervention or observation complete.</td><td>Deprecated</td></tr><tr><td style=\"white-space:nowrap\">death<a name=\"state-change-reason-death\"> </a></td><td>Death</td><td>The subject (ResearchSubject) has died.</td><td/></tr></table></div>"
  },
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode" : "brr"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger" : 1
    }
  ],
  "url" : "http://terminology.hl7.org/CodeSystem/state-change-reason",
  "identifier" : [
    {
      "system" : "urn:ietf:rfc:3986",
      "value" : "urn:oid:2.16.840.1.113883.4.642.1.0"
    }
  ],
  "version" : "2.0.0",
  "name" : "StateChangeReason",
  "title" : "StateChangeReason",
  "status" : "active",
  "experimental" : false,
  "date" : "2026-03-05",
  "publisher" : "Health Level Seven International",
  "contact" : [
    {
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://hl7.org"
        },
        {
          "system" : "email",
          "value" : "hq@HL7.org"
        }
      ]
    }
  ],
  "description" : "Indicates why the state of the subject changed.",
  "copyright" : "This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license.html",
  "caseSensitive" : true,
  "valueSet" : "http://terminology.hl7.org/ValueSet/state-change-reason",
  "content" : "complete",
  "property" : [
    {
      "code" : "status",
      "uri" : "http://hl7.org/fhir/concept-properties#status",
      "description" : "Designation of a concept's state. Normally is not populated unless the state is retired.",
      "type" : "code"
    }
  ],
  "concept" : [
    {
      "code" : "unable-to-participate",
      "display" : "Unable to Participate",
      "definition" : "The subject (ResearchSubject) is not able to take part in the ResearchStudy. Examples: subject has moved away; subject cannot drive and therefore unable to participate, etc."
    },
    {
      "code" : "unwilling-to-participate",
      "display" : "Unwilling to Participate",
      "definition" : "The subject (ResearchSubject) is refusing to take part in the ResearchStudy. Note: Subject refusal is a synonymous term and is used in some studies."
    },
    {
      "code" : "screening-failure",
      "display" : "Screening Failure",
      "definition" : "The failure of the potential subject (ResearchSubject) of meeting one or more criteria required for participation in a trial."
    },
    {
      "code" : "intervention-complete",
      "display" : "Intervention Complete",
      "definition" : "The subject (ResearchSubject) has finished the planned protocol-specified treatment phase."
    },
    {
      "code" : "follow-up-complete",
      "display" : "Follow-up Complete",
      "definition" : "The subject (ResearchSubject) has finished the planned protocol-specified follow-up phase."
    },
    {
      "code" : "adverse-event",
      "display" : "Adverse Event",
      "definition" : "The subject (ResearchSubject) has experienced any unfavorable or unintended disease, sign, or symptom that is temporally associated with the use of a medical treatment or procedure and that may or may not be considered related to the medical treatment or procedure."
    },
    {
      "code" : "consent-withdrawn",
      "display" : "Consent Withdrawn",
      "definition" : "The subject (ResearchSubject) has revoked permission to participate in the study or one or more components of the study."
    },
    {
      "code" : "non-compliance",
      "display" : "Non-compliance",
      "definition" : "The subject (ResearchSubject) has failed to follow medical advice, take medication as directed, or adhere to a prescribed course of treatment."
    },
    {
      "code" : "informedConsentSigned",
      "display" : "Informed consent signed",
      "definition" : "The subject (ResearchSubject) has signed informed consent.",
      "designation" : [
        {
          "use" : {
            "system" : "http://snomed.info/sct",
            "code" : "900000000000013009",
            "display" : "Synonym"
          },
          "value" : "Informed Consent"
        }
      ]
    },
    {
      "code" : "intOrObsComplete",
      "display" : "intervention or observation complete",
      "definition" : "intervention or observation complete.",
      "property" : [
        {
          "code" : "deprecationDate",
          "valueDateTime" : "2025-04-17"
        },
        {
          "code" : "replacedBy",
          "valueCode" : "intervention-complete"
        }
      ]
    },
    {
      "code" : "death",
      "display" : "Death",
      "definition" : "The subject (ResearchSubject) has died."
    }
  ]
}