M
Machado Joseph disease
Macrosomia
Macular degeneration
Magnesium deficiency
Malabsorption syndrome
Malaria
Male genital diseases
Malformations (use: Congenital abnormalities)
Malignant hyperpyrexia (use: Malignant hyperthermia)
Malignant hyperthermia
Malnutrition (use: Nutrition disorders)
Malocclusions
Manic depression (use: Bipolar disorder)
Maple syrup urine disease
Marfan syndrome
Mastitis
Maternal death
Maternal phenylketonuria
McCune Albright syndrome
Measles
Melanoma (use: Skin cancers)
Memory disorders
Meningitis
Meningocele
Meningomyelocele
Menstruation disorders
Mental disorders
Mental illness (use: Mental disorders)
Mental retardation
Metabolic diseases
Milk hypersensitivity (use: Milk intolerance)
Milk intolerance
Mongolism (use: Down syndrome)
Mononucleosis (use: Infectious mononucleosis)
Morning sickness (use: Nausea gravidarum)
Motor vehicle injuries
Mouth cancer (use: Oral cancer)
Mouth diseases
Movement disorders
Mucolipidosis
Mucopolysaccharidosis
Multiple sclerosis
Mumps
Munchausen syndrome
Munchausen syndrome by proxy
Muscular atrophy
Muscular diseases
Muscular dystrophy
Musculoskeletal diseases
Myasthenia gravis
Myelitis
Myelodysplasia (use: Neural tube defects)
Myelomeningocele (use: Meningomyelocele)
Myelopathic muscular atrophy (use: Spinal muscular atrophy)
Myoclonus