- Hemopericardium (with effusion) 423.0
- Hemoperitoneum 568.81
- Hemophagocytic syndrome 288.4
- Hemophilia (familial) (hereditary) 286.0
- Hemophilus influenzae NEC 041.5
- Hemophthalmos 360.43
- Hemopneumothorax (see also Hemothorax) 511.89
- Hemoptysis 786.3
- Hemorrhage, hemorrhagic (nontraumatic) 459.0
- Hemorrhoids (anus) (rectum) (without complication) 455.6
- Hemosalpinx 620.8
- Hemosiderosis 275.0
- Hemospermia 608.82
- Hemothorax 511.89
- Hemotympanum 385.89
- Hench-Rosenberg syndrome (palindromic arthritis) (see also Rheumatism, palindromic) 719.3
- Henle's warts 371.41
- Henoch (-Schönlein)
- Henpue, henpuye 102.6
- Hepar lobatum 095.3
- Heparin-induced thrombocytopenia (HIT) 289.84
- Heparitinuria 277.5