G31.8 - Other specified degenerative diseases of nervous system G31 - Other degenerative diseases of nervous system, not elsewhere classified G31.8 - Other specified degenerative diseases of nervous system
G31.81 - Alpers disease G31.82 - Leigh's disease G31.83 - Dementia with Lewy bodies G31.84 - Mild cognitive impairment, so stated G31.85 - Corticobasal degeneration G31.89 - Other specified degenerative diseases of nervous system