What I make of it
Two-level modeling — a stable reference model plus archetypes. A distinct philosophy from FHIR.
openEHR Archetypes / Reference Model
Information Model
Healthcare
openly published
openEHR provides open source specifications and reference implementations of future proof EHR systems...
Also in the API standards catalog
This standard shows up on both sides of the house — as a data model here, and as a standard applied in API operations. Same standard, two lenses.
See it as an API standard →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