---
type: "codesystem"
title: "Device Alert Presence"
codesystem: "devicealert-presence"
---
# Device Alert Presence

- **Official URL**: http://hl7.org/fhir/devicealert-presence
- **Version**: 6.0.0
- **Status**: active
- **Name**: DeviceAlertPresence
- **Title**: Device Alert Presence
- **Publisher**: HL7 International / Health Care Devices
- **Description**: Describes the Presence of a DeviceAlert.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| on | On | The signal is annunciated due to the presence of the alert condition |
| latched | Latched | The signal is annunciated after the alert condition is no longer present, until it is stopped by deliberate operator action |
| off | Off | The signal is not being annunciated and the alert condition is no longer present |
| ack | Acknowledged | The signal is no longer annunciated having been stopped by deliberate operator action although the alert condition is still present |

## CodeSystem XML



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

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="devicealert-presence"/>
  <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"/>
  <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 / Health Care 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."/>
  <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>
```