Vocabulary
UMLS
Unified Medical Language System Concept Unique Identifier
The Unified Medical Language System is a repository of biomedical vocabularies. Vocabularies integrated in the UMLS Metathesaurus include the NCBI taxonomy, Gene Ontology, the Medical Subject Headings (MeSH), OMIM and the Digital Anatomist Symbolic Knowledge Base. UMLS concepts are not only inter-related, but may also be linked to external resources such as GenBank.
Portals & registries
Also registered as
wikidata.entity: Q455338
Automated evaluation
- Persistent identifier (F1)no PURL / w3id / DOI for the artefact0
- Indexed in services (F4)1: Bioregistry+1
- Citable reference (F2)doi:10.1093/nar/gkh061+3
- Homepage reachableHTTP 200+3
- Artefact retrievable over HTTP(S) (A1)no download or repository listed0
- Metadata persists in a registry (A2)Bioregistry+3
- Formal machine-readable format (I1)none of: —0
- Semantic-web IRIs (I2)no RDF/OWL/JSON-LD representation0
- References other vocabularies (I3)no imported vocabularies found0
- Clear license (R1.1)https://www.nlm.nih.gov/research/umls/knowledge_sources/metathesaurus/release/license_agreement.html (not a recognised open license)+2
- Release provenance (R1.2)no version in artefact, registry or release tags0
- Community standards (R1.3)no independent compliance report (not on the OBO Dashboard)0
- Not applicablevocabulary without an OWL/OBO/RDF artefact; total scaled from 80 to 1000
- Recencyno activity evidence0
- Release cadence (12 months)0 releases0
- Documented adopting projects0 projects0
- Reused by other ontologies00
- Community signalmax(stars 0 → 0, citations 3332 → 5)+5
- No activity evidenceno commits, releases or dated files found-5
- Inactive statusnot archived, legacy or inactive0
FAIR subtotal 12/48 · earned 17/80 → scaled 21 − 5 inactivity = 16/100 → grade E
Community adoption 0
No adopting projects documented yet.
Know a project that uses UMLS? Suggest it.
History & changes 1 run
History starts with the first archived run; changes appear after the next evaluation.
| Run | Score | FAIR | Version evaluated | Terms | Snapshot |
|---|---|---|---|---|---|
| 26 Oct 2026, 03:31 UTC | 16 E | 12 | — | — | JSON |
Provenance
Every fact on this page was fetched automatically. Each row shows where it came from and when. If a source fails, the last good value is kept and marked “carried forward”.
| Fact | Source | Retrieved |
|---|---|---|
| Homepage link check (HTTP 200) | nlm.nih.gov | 26 Oct 2026, 03:27 UTC |
| Bioregistry mappings, dependencies & reuse | bioregistry.io | 26 Oct 2026, 03:27 UTC |
| Crossref citations (doi:10.1093/nar/gkh061) | api.crossref.org | 26 Oct 2026, 03:23 UTC |
Run 2026-10-26T02-37-38Z · evaluator v2.0.0 · rubric v3.4 · entry.json · run snapshot
How to cite
- The Unified Medical Language System (UMLS): integrating biomedical terminology (2004) · doi:10.1093/nar/gkh061 · 3,332 citations