---
type: "search-params"
title: "DeviceAlert Search Parameters"
resource: "DeviceAlert"
---
# DeviceAlert Search Parameters

<a id="identifier"></a>

## identifier
**Description:** The identifier of the alert

**Type:** token

**Expression:** DeviceAlert.identifier

**Path:** DeviceAlert.identifier

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-identifier


<a id="patient"></a>

## patient
**Description:** The patient subject of the alert

**Type:** reference

**Expression:** DeviceAlert.subject.where(resolve() is Patient)

**Path:** DeviceAlert.subject

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-patient


<a id="subject"></a>

## subject
**Description:** Subject of the alert

**Type:** reference

**Expression:** DeviceAlert.subject

**Path:** DeviceAlert.subject

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-subject


<a id="status"></a>

## status
**Description:** Status of the alert

**Type:** token

**Expression:** DeviceAlert.status

**Path:** DeviceAlert.status

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-status


<a id="code"></a>

## code
**Description:** Alert condition code

**Type:** token

**Expression:** DeviceAlert.code

**Path:** DeviceAlert.code

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-code


<a id="category"></a>

## category
**Description:** Alert category

**Type:** token

**Expression:** DeviceAlert.category

**Path:** DeviceAlert.category

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-category


<a id="presence"></a>

## presence
**Description:** Whether the alert condition is currently occurring

**Type:** token

**Expression:** DeviceAlert.presence

**Path:** DeviceAlert.presence

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-presence


<a id="acknowledged"></a>

## acknowledged
**Description:** Whether the alert condition has been acknowledged

**Type:** token

**Expression:** DeviceAlert.acknowledged

**Path:** DeviceAlert.acknowledged

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-acknowledged


<a id="occurrence"></a>

## occurrence
**Description:** When the alert condition occurred

**Type:** date

**Expression:** DeviceAlert.occurrence.ofType(Period) | occurrence.ofType(dateTime)

**Path:** DeviceAlert.occurrence

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-occurrence


<a id="priority"></a>

## priority
**Description:** Priority of the alert condition

**Type:** token

**Expression:** DeviceAlert.priority

**Path:** DeviceAlert.priority

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-priority


<a id="type"></a>

## type
**Description:** Whether the alert is physiological or technical

**Type:** token

**Expression:** DeviceAlert.type

**Path:** DeviceAlert.type

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-type


<a id="device"></a>

## device
**Description:** The device detecting the condition

**Type:** reference

**Expression:** DeviceAlert.device

**Path:** DeviceAlert.device

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-device


<a id="derived-from"></a>

## derived-from
**Description:** Whether the alert is currently occurring

**Type:** reference

**Expression:** DeviceAlert.derivedFrom.observation

**Path:** DeviceAlert.derivedFrom.observation

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-derivedFrom


<a id="signal-presence"></a>

## signal-presence
**Description:** Whether the alert is currently occurring

**Type:** token

**Expression:** DeviceAlert.signal.presence

**Path:** DeviceAlert.signal.presence

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-signalPresence


<a id="annunciator-concept"></a>

## annunciator-concept
**Description:** The whether the signalling device annunciating the condition is local or remote to the detecting device

**Type:** token

**Expression:** DeviceAlert.signal.annunciator.concept

**Path:** DeviceAlert.signal.annunciator.concept

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-annunciatorConcept


<a id="annunciator-device"></a>

## annunciator-device
**Description:** The signalling device annunciating the condition

**Type:** reference

**Expression:** DeviceAlert.signal.annunciator.reference

**Path:** DeviceAlert.signal.annunciator.reference

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-annunciatorDevice


<a id="manifestation"></a>

## manifestation
**Description:** How the alert signal is manifested

**Type:** token

**Expression:** DeviceAlert.signal.manifestation

**Path:** DeviceAlert.signal.manifestation

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-manifestation


<a id="indication"></a>

## indication
**Description:** When the signal was being annunciated

**Type:** date

**Expression:** DeviceAlert.signal.indication

**Path:** DeviceAlert.signal.indication

**Standards Status:** draft

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-indication


<a id="procedure"></a>

## procedure
**Description:** Procedure during which the alert occurred

**Type:** reference

**Expression:** DeviceAlert.procedure

**Path:** DeviceAlert.procedure

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-procedure


<a id="encounter"></a>

## encounter
**Description:** Encounter during which the alert occurred

**Type:** reference

**Expression:** DeviceAlert.encounter

**Path:** DeviceAlert.encounter

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-encounter


<a id="location"></a>

## location
**Description:** Location of the subject at time of alert

**Type:** reference

**Expression:** DeviceAlert.location

**Path:** DeviceAlert.location

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-location


<a id="acknowledged-by"></a>

## acknowledged-by
**Description:** Who acknowledged the alert

**Type:** reference

**Expression:** DeviceAlert.acknowledgedBy

**Path:** DeviceAlert.acknowledgedBy

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/DeviceAlert-acknowledged-by