bwHC Backend Core Components The bwHC backend consists of the following core components: Data Entry and Validation Service Query Service User Management Service Authentication API These are bundled and exposed in a REST API Gateway Main Dependencies Data Transfer Object Model and Generators / Display Object Model (Views) Extension methods for DTOs ICD-10-GM and ICD-O-3 Catalogs ATC Medication Catalog HGNC Gene Catalog FHIR Mappings Secondary Dependencies bwHC Utility Library Data Object Generator Library FHIR-Proof