The ICD-9 code range HEREDITARY AND DEGENERATIVE DISEASES OF THE CENTRAL NERVOUS SYSTEM for 330-337 is medical classification list by the World Health Organization (WHO).
Cerebral degenerations usually manifest in childhood
Other cerebral degenerations
Other cerebral degeneration
Other extrapyramidal disease and abnormal movement disorders
Symptomatic torsion dystonia
Fragments of torsion dystonia
Other and unspecified extrapyramidal diseases and abnormal movement disorders
Spinocerebellar disease
Anterior horn cell disease
Spinal muscular atrophy
Motor neuron disease
Other diseases of spinal cord
Disorders of the autonomic nervous system
Idiopathic peripheral autonomic neuropathy
Reflex sympathetic dystrophy