L
Lactation disorders
Lactose intolerance
Language disorders
Laurence Moon syndrome
Lead poisoning
Learned helplessness
Learning disabilities
Leukemia
Lice
Lipochondrodystrophy
Lipomucopolysaccharidosis (use: Mucolipidosis)
Listeria infections
Little disease (use: Cerebral palsy)
Liver cirrhosis
Liver diseases
Lobstein disease (use: Osteogenesis imperfecta)
Louis Barr syndrome (use: Ataxia telangiectasia)
Low birthweight
Lowe syndrome
Lung cancer
Lung diseases
Lupus erythematosus
Lyme disease
Lymphatic disorders (use: Blood and lymphatic diseases)