ICD-9-CM

HEREDITARY AND DEGENERATIVE DISEASES OF THE CENTRAL NERVOUS SYSTEM (330-337) Excludes: hepatolenticular degeneration (275.1) multiple sclerosis (340) other demyelinating diseases of central nervous system (341.0-341.9)
330: Cerebral degenerations usually manifest in childhood Use additional code to identify associated intellectual disabilities
331: Other cerebral degenerations Use additional code, where applicable, to identify dementia: with behavioral disturbance (294.11) without behavioral disturbance (294.10)
332: Parkinson's disease Excludes: dementia with Parkinsonism (331.82)
333: Other extrapyramidal disease and abnormal movement disorders Includes: other forms of extrapyramidal, basal ganglia, or striatopallidal disease Excludes: abnormal movements of head NOS (781.0) sleep related movement disorders (327.51-327.59)
334: Spinocerebellar disease Excludes: olivopontocerebellar degeneration (333.0) peroneal muscular atrophy (356.1)
335: Anterior horn cell disease
336: Other diseases of spinal cord
337: Disorders of the autonomic nervous system Includes: disorders of peripheral autonomic, sympathetic, parasympathetic, or vegetative system Excludes: familial dysautonomia [Riley-Day syndrome] (742.8)

HEREDITARY AND DEGENERATIVE DISEASES OF THE CENTRAL NERVOUS SYSTEM (330-337)

Excludes:

hepatolenticular degeneration (275.1)

multiple sclerosis (340)

other demyelinating diseases of central nervous system (341.0-341.9)

Use additional code to identify associated intellectual disabilities

Use additional code, where applicable, to identify dementia:

with behavioral disturbance (294.11)

without behavioral disturbance (294.10)