The ISO/IEEE 11073-10101 Nomenclature standard (11073 MDC) provides a comprehensive terminology for device models according to the 11073-10201 DIM. It's the preferred code system for profiles in this Implementation Guide. Reference identifiers, terminology codes, and descriptions are available at the Rosetta Terminology Mapping Management System (RTMMS).
The PoCD profiles define rules for terminology usage:
DeviceComponent.typeshall be present and have a coding from the 11073 MDC device nomenclature. This should ensure consistent coding using the ISO/IEEE 11073-10101 Nomenclature standard, which provides MDS, VMD, and Channel codes for device models according to the 11073-10201 DIM. As these elements are of type CodeableConcept there can be additional coding from other code systems.
DeviceMetric.type, which shall have a coding from the 11073 MDC metrics nomenclature.
DeviceMetric.unitis an optional element of type CodeableConcept. If present, it shall have a coding from the 11073 MDC units of measurement. Additional other coding is allowed as well. This element is the place for the 11073 MDC unit code, because the Observation resource has other constraints - see below.
The Vital Signs Profile, which is part of FHIR core specification, applies for some commonly used measurement observations (e. g., heart rate, blood pressure, respiratory rate, oxygen saturation, body temperature):
Observation.codeand, for compound metrics,
Observation.component.code. Depending on the type of measurement, the Vital Signs profiles may require a LOINC code. Note that the MDC code can be more specific than the Vital Signs LOINC code.
Observation.component.value[x]contains the units of measure. There is only a single coding that needs to be UCUM for all vital signs. Therefore the PoCD profiles require UCUM coding for all numerics.
This code system http://devices.fhir.org/CodeSystem/measurement-status defines the following codes:
|validated-data||Validated data||Relevant, e.g., in an archive|
|early-indication||Early indication||Early estimate of value|
|msmt-ongoing||Measurement ongoing||Indicates that a new measurement is just being taken|
|msmt-state-in-alarm||Measurement alarm active||Indicates that the metric has an active alarm condition|
|msmt-state-al-inhibited||Measurement alarms inhibited||Metric supports alarming and alarms are turned off|
Powered by SIMPLIFIER.NET