German Institute for Medical Documentation and Information

The German Institute for Medical Documentation and Information (German: Deutsches Institut für Medizinische Dokumentation und Information), abbreviated DIMDI, is a German organization responsible for medical information classification and management. It is a government Institute of the German Federal Ministry of Health and is located in Cologne, Germany.

The DIMDI publishes official medical classifications such as ICD-10-GM and OPS (German Procedure Classification) and maintains medical terminology dictionaries, thesauri, nomenclatures and catalogs (e.g. MeSH, UMDNS, Alpha-ID, LOINC, OID) that are important for health information exchange and other applications. DIMDI also develops and operates database-supported information systems for drugs and medical devices and is responsible for a program of health technology assessment (HTA). It also provides information intended for patients.