- Heredodegeneration 330.9
- Heredopathia atactica polyneuritiformis 356.3
- Heredosyphilis (see also Syphilis, congenital) 090.9
- Hermaphroditism (true) 752.7
- Hernia, hernial (acquired) (recurrent) 553.9
- Herniation - see also Hernia
- Herpangina 074.0
- Herpes, herpetic 054.9
- Herrick's
- Hers' disease (glycogenosis VI) 271.0
- Herter (-Gee) disease or syndrome (nontropical sprue) 579.0
- Herter's infantilism (nontropical sprue) 579.0
- Herxheimer's disease (diffuse idiopathic cutaneous atrophy) 701.8
- Herxheimer's reaction 995.91
- Hesitancy, urinary 788.64
- Hesselbach's hernia - see Hernia, Hesselbach's
- Heterochromia (congenital) 743.46
- Heterophoria 378.40
- Heterophyes, small intestine 121.6
- Heterophyiasis 121.6
- Heteropsia 368.8
- Heterotopia, heterotopic - see also Malposition, congenital
