| 
  Heyd's syndrome (hepatorenal)  572.4 | 
  HGSIL (high grade squamous intraepithelial lesion) (cytologic finding) (Pap smear finding)  | 
   | 
  Hibernoma (M8880/0) - see Lipoma  | 
   | 
   | 
  Hiccup (see also Hiccough)  786.8 | 
  Hicks (-Braxton) contractures  644.1 | 
   | 
  Hidradenitis (axillaris) (suppurative)  705.83 | 
  Hidradenoma (nodular) (M8400/0) - see also Neoplasm, skin, benign  | 
   | 
  Hidrocystoma (M8404/0) - see Neoplasm, skin, benign  | 
  HIE (hypoxic-ischemic encephalopathy)  768.7 | 
  High  | 
   | 
  Hildenbrand's disease (typhus)  081.9 | 
   | 
   | 
  Hilliard's lupus (see also Tuberculosis)  017.0 | 
  Hilum - see condition  | 
  Hip - see condition  | 
  Hippel's disease (retinocerebral angiomatosis)  759.6 | 
   | 
  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 | 
   | 
   | 
   | 
  Histiocytic syndromes  288.4 | 
  Histiocytoma (M8832/0) -  see also Neoplasm, skin, benign  | 
   | 
  Histiocytosis (acute) (chronic) (subacute)  277.89 | 
   | 
   | 
   | 
  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 | 
   | 
  Hobnail liver - see Cirrhosis, portal  | 
   | 
  Hodgkin's  | 
   | 
  Hodgson's disease (aneurysmal dilatation of aorta)  441.9 | 
   | 
   | 
  Hoffa (-Kastert) disease or syndrome (liposynovitis prepatellaris)  272.8 | 
  Hoffmann's syndrome  244.9 [359.5]  | 
  Hoffmann-Bouveret syndrome (paroxysmal tachycardia)  427.2 | 
  Hole  | 
   | 
  Holla disease (see also Spherocytosis)  282.0 | 
 |  |