• Jaccoud's nodular fibrositis, chronic (Jaccoud's syndrome) 714.4
  • Jackson's
  • Jacksonian
  • Jacob's ulcer (M8090/3) - see Neoplasm, skin, malignant, by site
  • Jacquet's dermatitis (diaper dermatitis) 691.0
  • Jadassohn's
  • Jadassohn-Lewandowski syndrome (pachyonychia congenita) 757.5
  • Jadassohn-Pellizari's disease (anetoderma) 701.3
  • Jadassohn-Tièche nevus (M8780/0) - see Neoplasm, skin, benign
  • Jaffe-Lichtenstein (-Uehlinger) syndrome 252.01
  • Jahnke's syndrome (encephalocutaneous angiomatosis) 759.6
  • Jakob-Creutzfeldt disease (CJD) (syndrome) 046.19
  • Jaksch (-Luzet) disease or syndrome (pseudoleukemia infantum) 285.8
  • Jamaican
  • Janet's disease (psychasthenia) 300.89
  • Janiceps 759.4
  • Jansky-Bielschowsky amaurotic familial idiocy 330.1
  • Japanese
  • Jaundice (yellow) 782.4
  • Jaw - see condition
  • Jaw-blinking 374.43
  • Jaw-winking phenomenon or syndrome 742.8