This is the CodeSystem that contains all the codes in WHO GDHCN Key Usage CodeSystem - UAT (http://smart.who.int/trust/CodeSystem/KeyUsage-UAT) and WHO GDHCN Key Usage CodeSystem - UAT (http://smart.who.int/trust/CodeSystem/KeyUsage-UAT). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem a790e9ea-f1bd-45b3-a862-9c89a4a21ea4-20
This code system http://hl7.org/fhir/comparison/CodeSystem/a790e9ea-f1bd-45b3-a862-9c89a4a21ea4-20 defines codes, but no codes are represented here