<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="devicealert-presence"/>
  <meta>
    <lastUpdated value="2026-04-01T17:59:15.240+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>