Describes a noteworthy condition or occurrence determined to exist by a device.

The DeviceAlert resource is derived from the ISO/IEEE 11073-10201 Domain Information Model standard, but is more widely applicable.

Instance identifiers assigned to a device, by the device or gateway software, manufacturers, other organizations or owners. For example, handle ID.

For identifiers assigned to a device by the device or gateway software, the system element of the identifier should be set to any identifier of the device.

The procedure (or procedures) during which the alert condition was raised.

in-progress | completed | entered-in-error.

Partitions the DeviceAlert into one or more categories that can be used to filter searching, to govern access control, or guide system behavior.

physiological | technical.

The alert priority is usually reported by the source device. A priority of info may indicate that the alert is “for information only” and not urgent action is required. The element may be omitted if the priority is unknown.

The DeviceAlert.code indicates the specific condition that triggered the alert. It may correspond to a DeviceMetric.alert.code or Device.alert.code.

Who or what the alert is about.

The encounter during which the alert condition was raised.

Whether the alert condition is currently active.

An instantaneous condition is reported with the same start and end value. The end value is omitted if the condition is ongoing.

A top-level or component Device (such as a MDS, VMD, or Channel) that detected the alert condition; or, within such a Device, the specific DeviceMetric (e.g. a heart rate reading) that was in an alert condition.

The location of the subject of the alert at the time that the alert was raised.

The value causing the alert condition.

The Observation whose value is causing the alert condition; or, if component is present, the Observation with a component causing the alert condition.

If applicable, the code of the component (of the Observation identified in derivedFrom.observation) having a value causing the alert condition. This may be used when the alert is associated with a specific component of an Observation, rather than the overall Observation; for example, a low diastolic blood pressure. Since the component is identified by matching Observation.component.code, if more than one component have the same code, the specific component is ambiguous. Repetitions of this element indicate additional components contributing to the alert condition.

The limits beyond which a value was detected to cause the alert condition. The actual value is the Observation.value[x] referenced by derivedFrom.observation or, if specified, the Observation.component.value[x] of the component (with Observation.component.code matching derivedFrom.component) of the reference Observation.

An indication of whether (true) or not (false) the alert condition has been acknowledged.

The label may combine information from the alert code, priority, the measurement type, measurement value, body sites and other sources, e.g., “HR > 180”.

Annunciation or notification of the alert condition.

Paused indicates that annunciation has temporarily been disabled ("snooze").

Indicates whether the signal is currently being annunciated. An on signal is currently being annunciated; a latched signal is currently being being annunciated although the alert condition has ended; an off signal is not currently being annunciated; and an acknowledged signal is not currently being annunciated because the user has acknowledged the signal.

Signalling by the source device is local; signalling elsewhere is considered remote. A reference to the "top level" signalling device may also be present.

How the signal is being annunciated.

Details of the signal manifestation, such as a 1 meter visual indicator or a 4 meter visual indicator.

The period during which the signal was being annunciated. If there is no indicated period end, the annunciation is on-going.

The indication period start when the signal presence is first on (or latched) and ends when the signal becomes off or acknowledged.