Union of http://hl7.org/fhir/uv/phd/CodeSystem/PhdObservationCategories and http://hl7.org/fhir/uv/phd/CodeSystem/PhdObservationCategories

This is the CodeSystem that contains all the codes in PHD Observation Categories Code System (http://hl7.org/fhir/uv/phd/CodeSystem/PhdObservationCategories) and PHD Observation Categories Code System (http://hl7.org/fhir/uv/phd/CodeSystem/PhdObservationCategories). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem 5e7a8f24-fdc5-4dc2-9caf-8bb90d380e05-17

This code system http://hl7.org/fhir/comparison/CodeSystem/5e7a8f24-fdc5-4dc2-9caf-8bb90d380e05-17 defines codes, but no codes are represented here

CodeDisplayDefinition
phd PHD generated ObservationAn observation coming from a personal health device, either directly or via a personal health gateway that maps the data received from the PHD into a FHIR Observation resource.