• Hippel's disease (retinocerebral angiomatosis) 759.6
  • Hippus 379.49
  • Hirschfeld's disease (acute diabetes mellitus) (see also Diabetes) 250.0
  • Hirschsprung's disease or megacolon (congenital) 751.3
  • Hirsuties (see also Hypertrichosis) 704.1
  • Hirsutism (see also Hypertrichosis) 704.1
  • Hirudiniasis (external) (internal) 134.2
  • His-Werner disease (trench fever) 083.1
  • Hiss-Russell dysentery 004.1
  • Histamine cephalgia 339.00
  • Histidinemia 270.5
  • Histidinuria 270.5
  • Histiocytic syndromes 288.4
  • Histiocytoma (M8832/0) - see also Neoplasm, skin, benign
  • Histiocytosis (acute) (chronic) (subacute) 277.89
  • Histoplasmosis 115.90
  • History (personal) of
  • HIT (heparin-induced thrombocytopenia) 289.84
  • HIV infection (disease) (illness) - see Human immunodeficiency virus (disease) (illness) (infection)
  • Hives (bold) (see also Urticaria) 708.9
  • Hoarseness V87.46
  • Hobnail liver - see Cirrhosis, portal