Translations:Medical classification/20/en
- Diagnostic and Statistical Manual of Mental Disorders (DSM)
- International Classification of Headache Disorders 2nd Edition (ICHD-II)
- International Classification of Sleep Disorders (ICSD)
- Online Mendelian Inheritance in Man, database of genetic codes
- Orchard Sports Injury and Illness Classification System (OSIICS)
- Read codes
- SNOMED CT