| identifier | No | Identifier[] | Instance identifier |
| type | Yes | CodeableConcept | Identity of metric, for example Heart Rate or PEEP Setting |
| unit | No | CodeableConcept | Unit of Measure for the Metric |
| source | No | Reference<Device> | Describes the link to the source Device |
| parent | No | Reference<Device> | Describes the link to the parent Device |
| operationalStatus | No | code | on / off / standby / entered-in-error |
| color | No | code | black / red / green / yellow / blue / magenta / cyan / white |
| category | Yes | code | measurement / setting / calculation / unspecified |
| measurementPeriod | No | Timing | Describes the measurement repetition time |
| calibration | No | DeviceMetricCalibration | Describes the calibrations that have been performed or that are required to be performed |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - type | No | code | unspecified / offset / gain / two-point |
| - state | No | code | not-calibrated / calibration-required / calibrated / unspecified |
| - time | No | instant | Describes the time last calibration has been performed |
