<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="devicealert-presence"/><meta><lastUpdated value="2026-03-31T18:19:13.451+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem devicealert-presence</b></p><a name="devicealert-presence"> </a><a name="hcdevicealert-presence"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/devicealert-presence</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">on<a name="devicealert-presence-on"> </a></td><td>On</td><td>The signal is annunciated due to the presence of the alert condition</td></tr><tr><td style="white-space:nowrap">latched<a name="devicealert-presence-latched"> </a></td><td>Latched</td><td>The signal is annunciated after the alert condition is no longer present, until it is stopped by deliberate operator action</td></tr><tr><td style="white-space:nowrap">off<a name="devicealert-presence-off"> </a></td><td>Off</td><td>The signal is not being annunciated and the alert condition is no longer present</td></tr><tr><td style="white-space:nowrap">ack<a name="devicealert-presence-ack"> </a></td><td>Acknowledged</td><td>The signal is no longer annunciated having been stopped by deliberate operator action although the alert condition is still present</td></tr></table></div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="dev"/></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="2"/></extension><url value="http://hl7.org/fhir/devicealert-presence"/><version value="6.0.0-ballot4"/><name value="DeviceAlertPresence"/><title value="Device Alert Presence"/><status value="active"/><experimental value="false"/><date value="2023-12-10T10:01:24+11:00"/><publisher value="HL7 International / Devices"/><contact><telecom><system value="url"/><value value="http://www.hl7.org/Special/committees/healthcaredevices"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><description value="Describes the Presence of a DeviceAlert."/><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/devicealert-presence"/><content value="complete"/><concept><code value="on"/><display value="On"/><definition value="The signal is annunciated due to the presence of the alert condition"/></concept><concept><code value="latched"/><display value="Latched"/><definition value="The signal is annunciated after the alert condition is no longer present, until it is stopped by deliberate operator action"/></concept><concept><code value="off"/><display value="Off"/><definition value="The signal is not being annunciated and the alert condition is no longer present"/></concept><concept><code value="ack"/><display value="Acknowledged"/><definition value="The signal is no longer annunciated having been stopped by deliberate operator action although the alert condition is still present"/></concept></CodeSystem>