RxNorm
Code System
Healthcare
openly published
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Other healthcare data models
HL7 CDA / C-CDA
Exchange Schema
CPT and HCPCS (Current Procedural Terminology)
Code System
Da Vinci Project Implementation Guides
Exchange Schema
DICOM
Information Model
DOID (Human Disease Ontology)
Ontology / Vocabulary
HL7 FHIR
Exchange Schema
HL7 RIM (Reference Information Model)
Information Model
HL7 Version 2
Exchange Schema
i2b2 star schema
Information Model
ICD-11 (International Classification of Diseases)
Code System
ICF (International Classification of Functioning)
Code System
IHE Technical Frameworks and Profiles
Exchange Schema