Union of http://terminology.hl7.org/CodeSystem/usEPAsrs and http://terminology.hl7.org/CodeSystem/usEPAsrs

This is the CodeSystem that contains all the codes in US EPA Substance Registry System (http://terminology.hl7.org/CodeSystem/usEPAsrs) and US EPA Substance Registry System (http://terminology.hl7.org/CodeSystem/usEPAsrs). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem 9374b3b2-0331-4262-a17e-227b06a8f8f3-1655

This code system http://hl7.org/fhir/comparison/CodeSystem/9374b3b2-0331-4262-a17e-227b06a8f8f3-1655 defines codes, but no codes are represented here

Code