MeSH

Medical Subject Headings (NLM)

2026 Release

Concepts

356,585

1,405 invalid (0.4%)

Domain mix

9 domains

Observation

326,98092%

Condition

11,7253.3%

Drug

8,2462.3%

Procedure

3,1460.9%

Device

2,0820.6%

Specimen Anatomic Site

1,9890.6%

Measurement

5830.2%

Geographical object

4270.1%

1 more domain

Language

2<0.1%

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