Directory / Terminology & standards / HDB-0490

Mondo Disease Ontology

Monarch Initiative

HDB-0490

A unified disease terminology system that harmonizes disease definitions across the world by merging multiple disease resources into one coherent ontology. Contains disease concepts with precise mappings between different medical databases and is released under CC-BY 4.0.

Category

Terminology

Access

Open access

Region

Global

Size

29,000+ disease concepts

License / terms

CC-BY 4.0

Data types

disease-ontology, disease-mappings

disease-classification rare-disease data-integration

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Record HDB-0490 · last verified 2026-08-23 · listed in Terminology & standards

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