This is the CodeSystem that contains codes in both Codes for medication drug tiers in health plans (http://hl7.org/fhir/us/davinci-drug-formulary/CodeSystem/usdf-DrugTierCS-TEMPORARY-TRIAL-USE) and Codes for medication drug tiers in health plans (http://hl7.org/fhir/us/davinci-drug-formulary/CodeSystem/usdf-DrugTierCS-TEMPORARY-TRIAL-USE).
Generated Narrative: CodeSystem 57df8df7-979b-46af-a6ba-aa1a60c5d4f8-9
This code system http://hl7.org/fhir/comparison/CodeSystem/57df8df7-979b-46af-a6ba-aa1a60c5d4f8-9
defines codes, but no codes are represented here