This is the CodeSystem that contains all the codes in US Public Health CodeSystem Properties Example (http://example.org/fhir/CodeSystem/us-ph-codesystem-properties-example) and US Public Health CodeSystem - Properties Example (http://example.org/fhir/CodeSystem/us-ph-codesystem-properties-example). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem b2445509-e923-4866-94cd-833e1378d96b-17
This code system http://hl7.org/fhir/comparison/CodeSystem/b2445509-e923-4866-94cd-833e1378d96b-17 defines codes, but no codes are represented here