This is the ValueSet that contains all the codes in ConformanceUseContext (http://hl7.org/fhir/ValueSet/use-context) and ConformanceUseContext (http://hl7.org/fhir/ValueSet/use-context). E.g. what you have to deal with if you get resources containing codes in either of them
  This value set includes codes based on the following rules:
- Import all the codes that are contained in http://hl7.org/fhir/ValueSet/usps-state
 - Import all the codes that are contained in Practitioner specialty
 - Import all the codes that are contained in the intersection of 
 - Import all the codes that are contained in the intersection of 
 - Import all the codes that are contained in the intersection of 
 - Import all the codes that are contained in the intersection of 
 - Import all the codes that are contained in the intersection of 
 - Import all the codes that are contained in AdministrativeGender
 - Import all the codes that are contained in Condition/Problem/Diagnosis Codes
 - Import all the codes that are contained in the intersection of 
 - Import all the codes that are contained in ActEncounterCode
 - Import all the codes that are contained in ActTaskCode
 - Include all codes defined in 
urn:iso:std:iso:3166