ICD-10-CM
- Jacquet's dermatitis (diaper dermatitis)
- Jadassohn-Pellizari's disease or anetoderma
- Jaksch-Luzet disease
- Janet's disease
- Janiceps
- Jansky-Bielschowsky amaurotic idiocy
- Jaw-winking phenomenon or syndrome
- Jejunostomy status
- Jerks, myoclonic
- Jervell-Lange-Nielsen syndrome
- Jeune's disease
- Jigger disease
- Job's syndrome (chronic granulomatous disease)
- Jordan's anomaly or syndrome
- Joseph-Diamond-Blackfan anemia (congenital hypoplastic)
- Jungle yellow fever