Union of http://hl7.org/fhir/us/ph-library/CodeSystem/us-ph-codesystem-usage-context and http://hl7.org/fhir/us/ph-library/CodeSystem/us-ph-codesystem-usage-context

This is the CodeSystem that contains all the codes in US Public Health CodeSystem - Usage Context (http://hl7.org/fhir/us/ph-library/CodeSystem/us-ph-codesystem-usage-context) and US Public Health CodeSystem - Usage Context (http://hl7.org/fhir/us/ph-library/CodeSystem/us-ph-codesystem-usage-context). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem ae1d94d9-a2d1-451f-8d4b-c56332d31293-20

This code system http://hl7.org/fhir/comparison/CodeSystem/ae1d94d9-a2d1-451f-8d4b-c56332d31293-20 defines codes, but no codes are represented here

CodeDisplayDefinition
emergent EmergentThe artifact is an emergent reporting specification program release.
program ProgramThe artifact is a reporting specification program.
routine RoutineThe artifact is a routine reporting specification program release.
supplemental SupplementalThe artifact is applicable only when determining whether an event is suspected reportable.
triggering TriggeringThe artifact is applicable when identifying a triggering event.
value-set-library ValueSet LibraryThe artifact is a ValueSet Library.