This is the ValueSet that contains all the codes in US Core Survey Codes (http://hl7.org/fhir/us/core/ValueSet/us-core-survey-codes) and LOINC Codes (http://hl7.org/fhir/ValueSet/observation-codes). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: ValueSet 880355e9-64e9-4fcf-abcb-30b8a4d3d654-68
This value set includes codes based on the following rules:
http://loinc.org where CLASSTYPE = 4http://loinc.org where CLASSTYPE = 2http://loinc.org where CLASS = PANEL.NEONAThttp://loinc.org