List of ICD-9 codes 320-359: Diseases of the nervous system

inflammatory diseases of the central nervous system (320-326)

 * Bacterial meningitis
 * Meningitis, hemophilus
 * Meningitis, bacterial, NOS
 * Meningitis of unspecified cause
 * Meningitis, unspec. cause
 * Encephalitis, myelitis, and encephalomyelitis
 * Encephalitis, unspec.
 * Intracranial and intraspinal abscess
 * Phlebitis and thrombophlebitis of intracranial venous sinuses
 * Venous sinus thrombosis, intracranial
 * Late effects of intracranial abscess or pyogenic infection

hereditary and degenerative diseases of the central nervous system (330-337)

 * Cerebral degenerations usually manifest in childhood
 * Leukodystrophy
 * Krabbe disease
 * Pelizaeus-Merzbacher disease
 * Cerebral lipidoses
 * Tay-Sachs disease
 * Other cerebral degenerations
 * Alzheimer's
 * Pick's disease
 * Hydrocephalus, obstructive
 * Other cerebral degeneration
 * Reye's syndrome
 * Parkinson's disease
 * Parkinsonism, primary
 * Other extrapyramidal disease and abnormal movement disorders
 * Other degenerative diseases of the basal ganglia
 * Olivopontocerebellar atrophy
 * Shy-Drager syndrome
 * Essential tremor/familial tremor
 * Myoclonus
 * Lafora's disease
 * Unverricht disease
 * Huntington's chorea
 * Fragments of torsion dystonia
 * Blepharospasm
 * Other and unspecified extrapyramidal diseases and abnormal movement disorders
 * Other extrapyramidal diseases and abnormal movement disorders
 * Restless legs
 * Serotonin syndrome


 * Spinocerebellar disease
 * Friedreich's ataxia
 * Spinocerebellar ataxia
 * Hereditary spastic paraplegia
 * Primary cerebellar degeneration
 * Other cerebellar ataxia
 * Cerebellar ataxia in diseases classified elsewhere
 * Other spinocerebellar diseases
 * Ataxia-telangiectasia [Louis-Bar syndrome]
 * Corticostriatal-spinal degeneration
 * Spinocerebellar disease unspecified


 * Anterior horn cell disease
 * Motor neuron disease
 * Amyotrophic lateral sclerosis
 * Progressive muscular atrophy
 * Progressive bulbar palsy
 * Pseudobulbar palsy
 * Primary lateral sclerosis
 * Other motor neuron diseases


 * Other diseases of spinal cord
 * Syringomyelia and syringobulbia


 * Disorders of the autonomic nervous system
 * Reflex sympathetic dystrophy

other disorders of the central nervous system (340-349)

 * Multiple sclerosis
 * Other demyelinating diseases of central nervous system
 * Hemiplegia
 * Hemiplegia, flaccid
 * Hemiplegia, spastic
 * Infantile cerebral palsy
 * Cerebral palsy, paraplegic, congenital
 * Cerebral palsy, hemiplegic, congenital
 * Cerebral palsy, quadriplegic
 * Other paralytic syndromes
 * Quadraplegia and quadraparesis
 * Paraplegia
 * Diplegia of upper limbs
 * Monoplegia of lower limb
 * Monoplegia of upper limb
 * Unspecified monoplegia
 * Cauda equina syndrome
 * Other specified paralytic syndromes
 * Locked-in state
 * Paralysis unspecified


 * Epilepsy
 * Epilepsy, absence, w/o intractable epilepsy
 * Epilepsy, tonic-clonic, w/o status
 * Epilepsy, status
 * Epilepsy, temporal lobe, w/o status
 * Epilepsy, unspec., w/o status
 * Migraine
 * Migraine, classical, not intractable
 * Migraine, common, not intractable
 * Headaches, cluster, not intractable
 * Migraine, unspec., not intractable
 * Cataplexy and narcolepsy
 * Narcolepsy, w/o cataplexy
 * Other conditions of brain
 * Pseudotumor cerebri
 * Encephalopathy, unspec.
 * Encephalopathy, metabolic
 * Cerebral edema
 * Other and unspecified disorders of the nervous system
 * Headache, post spinal puncture

disorders of the peripheral nervous system (350-359)

 * Trigeminal nerve disorders
 * Trigeminal neuralgia
 * Facial nerve disorders
 * Bell's palsy
 * Disorders of other cranial nerves
 * Nerve root and plexus disorders
 * Thoracic outlet syndrome
 * Phantom limb
 * Mononeuritis of upper limb and mononeuritis multiplex
 * Carpal tunnel
 * Mononeuritis of lower limb
 * Lateral femoral cutaneous neuropathy
 * Morton's neuroma
 * Hereditary and idiopathic peripheral neuropathy
 * Inflammatory and toxic neuropathy
 * Guillain-Barré syndrome
 * Neuropathy, poly-, alcoholic
 * Neuropathy, poly-, unspec.
 * Myoneural disorders
 * Myasthenia gravis w/o exacerbation
 * Myasthenia gravis w/ exacerbation
 * Muscular dystrophies and other myopathies
 * Congenital hereditary myopathies, including:
 * Benign congenital myopathy
 * Central core disease
 * Centronuclear myopathy
 * Myotubular myopathy
 * Nemaline body disease
 * Muscular dyst., hereditary