This is the CodeSystem that contains all the codes in Device Alert Presence (http://terminology.hl7.org/CodeSystem/devicealert-presence) and Device Alert Presence (http://terminology.hl7.org/CodeSystem/devicealert-presence). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 209ef897-e0c1-42aa-924c-4a2591583ab9-371
This code system http://hl7.org/fhir/comparison/CodeSystem/209ef897-e0c1-42aa-924c-4a2591583ab9-371 defines codes, but no codes are represented here