This is the ValueSet that contains all the codes in US Core Procedure Codes (http://hl7.org/fhir/us/core/ValueSet/us-core-procedure-code) and US Core Procedure Codes (http://hl7.org/fhir/us/core/ValueSet/us-core-procedure-code). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: ValueSet a864423b-3de8-4359-aee0-05674c6d09ad-236
This value set includes codes based on the following rules:
http://www.cms.gov/Medicare/Coding/HCPCSReleaseCodeSets
https://www.cms.gov/Medicare/Coding/HCPCSReleaseCodeSets