Union of http://hl7.org/fhir/ValueSet/observation-category and http://hl7.org/fhir/us/core/ValueSet/us-core-simple-observation-category

This is the ValueSet that contains all the codes in Observation Category Codes (http://hl7.org/fhir/ValueSet/observation-category) and US Core Simple Observation Category (http://hl7.org/fhir/us/core/ValueSet/us-core-simple-observation-category). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: ValueSet efa809c9-a3af-4d45-b259-5658992532c3-89

This value set includes codes based on the following rules: