DeviceMetric

Introduction

Scope and Usage

The DeviceMetric resource describes dynamic properties that characterize a direct or derived, quantitative or qualitative setting, or calculation produced by a medical device, i.e., readings and settings of, or from, the device. The DeviceMetric resource can also be used to describe the properties relevant to the metric such as status, last calibration time and type, measurement mode, color, and to link to the parent Device.

Boundaries and Relationships

These are the DeviceMetric-related resources:

• Device: The physical, virtual, or software device that this DeviceMetric is for. Note that the Device.property element is used to record static characteristics or properties of the Device.
• Observation: Used to record the particular value of the DeviceMetric at a point in time.
• DeviceAlert: Can refer to a DeviceMetric to identify the detector of the alert condition via the device data element.

Notes

Notes:

• The codes for the metric types are registered in the RTM Management service, but this is not required. See Terminology Systems for the representation of these codes in a Coding data type.

StructureDefinition

Elements (Simplified)

• DeviceMetric [0..*]: - Measurement, calculation or setting capability of a medical device
• DeviceMetric.identifier [0..*]: Identifier Instance identifier
• DeviceMetric.status [1..1]: code required:metric-status active | inactive | entered-in-error | unknown
• DeviceMetric.operationalStatus [0..1]: code required:metric-operational-status on | off | standby | unknown
• DeviceMetric.category [1..1]: CodeableConcept extensible:metric-category The kind of metric represented
• DeviceMetric.type [1..1]: CodeableConcept preferred:devicemetric-type Identity of metric, for example Heart Rate or PEEP Setting
• DeviceMetric.device [1..1]: Reference(Device) The device to which this DeviceMetric applies
• DeviceMetric.unit [0..1]: CodeableConcept preferred:ucum-units Unit of Measure for the Metric
• DeviceMetric.color [0..1]: code required:color-codes Color name (from CSS4) or #RRGGBB code
• DeviceMetric.measurementFrequency [0..1]: Quantity Indicates how often the metric is taken or recorded
• DeviceMetric.availability [0..1]: CodeableConcept extensible:metric-availability The continuity of the metric (e.g., measurement)
• DeviceMetric.calibration [0..*]: BackboneElement Describes the calibrations that have been performed or that are required to be performed
• DeviceMetric.calibration.type [0..1]: CodeableConcept extensible:metric-calibration-type The method of calibration
• DeviceMetric.calibration.state [0..1]: code required:metric-calibration-state not-calibrated | calibration-required | calibrated | unspecified
• DeviceMetric.calibration.time [0..1]: instant Describes the time last calibration has been performed

Mappings

• DeviceMetric Mappings — 26 mapping entries

Resource Packs

list-DeviceMetric-packs.xml

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

<List xmlns="http://hl7.org/fhir">
  <id value="DeviceMetric-packs"/>
  <status value="current"/>
  <mode value="working"/>
</List>

Search Parameters

• status — token — The status of the metric record — DeviceMetric.status
• category — token — The category of the metric — DeviceMetric.category
• identifier — token — The identifier of the metric — DeviceMetric.identifier
• device — reference — The device resource — DeviceMetric.device
• type — token — The type of metric — DeviceMetric.type

Full Search Parameters

Examples

• devicemetric-example — devicemetric-example
• devicemetric-examples-header — devicemetric-examples-header
• example — devicemetric-example — General DeviceMetric example

Full Examples

Mapping Exceptions

devicemetric-fivews-mapping-exceptions.xml

Unmapped Elements

• FiveWs.recorded — Not identified as needed in core use cases.
• FiveWs.author — Not identified as needed in core use cases.
• FiveWs.actor — Resource does not reflect an activity performed by an actor.
• FiveWs.cause — Resource does not reflect a prompted activity.
• FiveWs.version — Not identified as needed in core use cases.
• FiveWs.witness — Third-party attestation of the resource is not expected.
• FiveWs.where — To the degree that this resource is associated with any location, it is recorded in the device's location.
• FiveWs.context — Resource is independent of any specific context.
• FiveWs.init — Resource does not reflect an activity that occurs.
• FiveWs.why — Resource does not reflect an activity that occurs.
• FiveWs.source — Resource does not cover second-hand information.
• FiveWs.who — Resource does not reflect an activity performed by an actor.
• FiveWs.grade — Resource does not reflect an activity with a priority/severity.
• FiveWs.planned — Resource does not reflect a planned activity.
• FiveWs.done — Resource does not reflect an activity done at a particular time.