<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="deviceassociation-status-reason"/><meta><lastUpdated value="2026-06-24T21:24:10.503+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem deviceassociation-status-reason</b></p><a name="deviceassociation-status-reason"> </a><a name="hcdeviceassociation-status-reason"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/deviceassociation-status-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></tr><tr><td style="white-space:nowrap">lost-to-follow-up<a name="deviceassociation-status-reason-lost-to-follow-up"> </a></td><td>Lost To Follow-Up</td><td>The relationship status changed because follow-up with the subject or responsible party was lost.</td></tr><tr><td style="white-space:nowrap">record-archived<a name="deviceassociation-status-reason-record-archived"> </a></td><td>Record Archived</td><td>The relationship status changed because the association record was archived.</td></tr><tr><td style="white-space:nowrap">superseded<a name="deviceassociation-status-reason-superseded"> </a></td><td>Superseded</td><td>The relationship status changed because the association was replaced by a newer association record.</td></tr><tr><td style="white-space:nowrap">duplicate<a name="deviceassociation-status-reason-duplicate"> </a></td><td>Duplicate</td><td>The relationship status changed because the association record was identified as a duplicate.</td></tr><tr><td style="white-space:nowrap">patient-deceased<a name="deviceassociation-status-reason-patient-deceased"> </a></td><td>Patient Deceased</td><td>The relationship status changed because the patient associated with the device is deceased.</td></tr><tr><td style="white-space:nowrap">device-retired<a name="deviceassociation-status-reason-device-retired"> </a></td><td>Device Retired</td><td>The relationship status changed because the device was retired from service.</td></tr><tr><td style="white-space:nowrap">association-ended<a name="deviceassociation-status-reason-association-ended"> </a></td><td>Association Ended</td><td>The relationship status changed because the association ended.</td></tr><tr><td style="white-space:nowrap">unknown<a name="deviceassociation-status-reason-unknown"> </a></td><td>Unknown</td><td>The reason for the relationship status is not known.</td></tr></table></div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="oo"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"><valueCode value="normative"/></extension><url value="http://hl7.org/fhir/deviceassociation-status-reason"/><version value="6.0.0-ballot4"/><name value="DeviceAssociationStatusReason"/><title value="DeviceAssociation Status Reason Codes"/><status value="active"/><experimental value="false"/><publisher value="HL7 International"/><description value="DeviceAssociation Status Reason Codes"/><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/deviceassociation-status-reason"/><content value="complete"/><concept><code value="lost-to-follow-up"/><display value="Lost To Follow-Up"/><definition value="The relationship status changed because follow-up with the subject or responsible party was lost."/></concept><concept><code value="record-archived"/><display value="Record Archived"/><definition value="The relationship status changed because the association record was archived."/></concept><concept><code value="superseded"/><display value="Superseded"/><definition value="The relationship status changed because the association was replaced by a newer association record."/></concept><concept><code value="duplicate"/><display value="Duplicate"/><definition value="The relationship status changed because the association record was identified as a duplicate."/></concept><concept><code value="patient-deceased"/><display value="Patient Deceased"/><definition value="The relationship status changed because the patient associated with the device is deceased."/></concept><concept><code value="device-retired"/><display value="Device Retired"/><definition value="The relationship status changed because the device was retired from service."/></concept><concept><code value="association-ended"/><display value="Association Ended"/><definition value="The relationship status changed because the association ended."/></concept><concept><code value="unknown"/><display value="Unknown"/><definition value="The reason for the relationship status is not known."/></concept></CodeSystem>