- Millard-Gubler-Foville paralysis 344.89
- Miller Fisher's syndrome 357.0
- Miller's disease (osteomalacia) 268.2
- Miller-Dieker syndrome 758.33
- Milles' syndrome (encephalocutaneous angiomatosis) 759.6
- Mills' disease 335.29
- Millstone makers' asthma or lung 502
- Milroy's disease (chronic hereditary edema) 757.0
- Miners' - see also condition
- Minkowski-Chauffard syndrome (see also Spherocytosis) 282.0
- Minor - see condition
- Minor's disease 336.1
- Minot's disease (hemorrhagic disease, newborn) 776.0
- Minot-von Willebrand (-Jürgens) disease or syndrome (angiohemophilia) 286.4
- Minus (and plus) hand (intrinsic) 736.09
- Miosis (persistent) (pupil) 379.42
- Mirizzi's syndrome (hepatic duct stenosis) (see also Obstruction, biliary) 576.2
- Mirror writing 315.09
- Misadventure (prophylactic) (therapeutic) (see also Complications) 999.9
- Misanthropy 301.7
- Miscarriage - see Abortion, spontaneous
- Mischief, malicious, child (see also Disturbance, conduct) 312.0
