• Neutro-occlusion 524.21
  • Neutropenia, neutropenic (idiopathic) (pernicious) (primary) 288.00
  • Neutrophilia, hereditary giant 288.2
  • Nevocarcinoma (M8720/3) - see Melanoma
  • Nevus (M8720/0) - see also Neoplasm, skin, benign
  • Newborn (infant) (liveborn)
  • Newcastle's conjunctivitis or disease 077.8
  • Nezelof's syndrome (pure alymphocytosis) 279.13
  • Niacin (amide) deficiency 265.2
  • Nicolas-Durand-Favre disease (climatic bubo) 099.1
  • Nicolas-Favre disease (climatic bubo) 099.1
  • Nicotinic acid (amide) deficiency 265.2
  • Niemann-Pick disease (lipid histiocytosis) (splenomegaly) 272.7
  • Night
  • Nightmare 307.47
  • Nipple - see condition
  • Nisbet's chancre 099.0
  • Nishimoto (-Takeuchi) disease 437.5
  • Nitritoid crisis or reaction - see Crisis, nitritoid
  • Nitrogen retention, extrarenal 788.99
  • Nitrosohemoglobinemia 289.89
  • Njovera 104.0