List of ICD-9 codes 320-359: Diseases of the nervous system
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6a. Diseases of the nervous system (320-359) 
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inflammatory diseases of the central nervous system (320-326) Edit
- (320) Bacterial meningitis
- (322) Meningitis of unspecified cause
- (323) Encephalitis, myelitis, and encephalomyelitis
- (324) Intracranial and intraspinal abscess
- (325) Phlebitis and thrombophlebitis of intracranial venous sinuses
- (326) Late effects of intracranial abscess or pyogenic infection
hereditary and degenerative diseases of the central nervous system (330-337) Edit
- (330) Cerebral degenerations usually manifest in childhood
- (331) Other cerebral degenerations
- (332) Parkinson's disease
- (332.0) Parkinsonism, primary
- (333) Other extrapyramidal disease and abnormal movement disorders
- (333.0) Other degenerative diseases of the basal ganglia
- (333.1) Essential tremor/familial tremor
- (333.2) Myoclonus
- (333.4) Huntington's chorea
- (333.8) Fragments of torsion dystonia
- (333.9) Other and unspecified extrapyramidal diseases and abnormal movement disorders
- (333.99) Other extrapyramidal diseases and abnormal movement disorders
- (334) Spinocerebellar disease
- (334.0) Friedreich's ataxia
- (334.1) Hereditary spastic paraplegia
- (334.2) Primary cerebellar degeneration
- (334.3) Other cerebellar ataxia
- (334.4) Cerebellar ataxia in diseases classified elsewhere
- (334.8) Other spinocerebellar diseases
- Ataxia-telangiectasia [Louis-Bar syndrome]
- Corticostriatal-spinal degeneration
- (334.9) Spinocerebellar disease unspecified
- (335) Anterior horn cell disease
- (335.2) Motor neuron disease
- (335.20) Amyotrophic lateral sclerosis
- (335.21) Progressive muscular atrophy
- (335.22) Progressive bulbar palsy
- (335.23) Pseudobulbar palsy
- (335.24) Primary lateral sclerosis
- (335.29) Other motor neuron diseases
- (335.2) Motor neuron disease
- (336) Other diseases of spinal cord
- (336.0) Syringomyelia and syringobulbia
- (337) Disorders of the autonomic nervous system
other disorders of the central nervous system (340-349) Edit
- (340) Multiple sclerosis
- (341) Other demyelinating diseases of central nervous system
- (342) Hemiplegia
- (343) Infantile cerebral palsy
- (344) Other paralytic syndromes
- (344.0) Quadraplegia and quadraparesis
- (344.1) Paraplegia
- (344.2) Diplegia of upper limbs
- (344.3) Monoplegia of lower limb
- (344.4) Monoplegia of upper limb
- (344.5) Unspecified monoplegia
- (344.6) Cauda equina syndrome
- (344.8) Other specified paralytic syndromes
- (344.9) Paralysis unspecified
- (345) Epilepsy
- (346) Migraine
- (347) Cataplexy and narcolepsy
- (348) Other conditions of brain
- (349) Other and unspecified disorders of the nervous system
disorders of the peripheral nervous system (350-359) Edit
- (350) Trigeminal nerve disorders
- (351) Facial nerve disorders
- (352) Disorders of other cranial nerves
- (353) Nerve root and plexus disorders
- (354) Mononeuritis of upper limb and mononeuritis multiplex
- (355) Mononeuritis of lower limb
- (356) Hereditary and idiopathic peripheral neuropathy
- (357) Inflammatory and toxic neuropathy
- (358) Myoneural disorders
- (359) Muscular dystrophies and other myopathies
- (359.0) Congenital hereditary myopathies, including:
- (359.1) Muscular dyst., hereditary
See alsoEdit
Cerebral palsy and other paralytic syndromes (G80-G83, 342-344) | |
|---|---|
| Paresis and plegia NOS |
Paralysis - Quadriplegia - Triplegia - Hemiplegia/Hemiparesis - Paraplegia/Diplegia - Monoplegia |
| Flaccid vs. spastic | |
| Specific types | |
Nervous system pathology, primarily PNS (G50-G99, 350-359) | |
|---|---|
| Nerve, nerve root and plexus disorders |
cranial nerve: V (Trigeminal neuralgia) - VII (Facial nerve paralysis, Bell's palsy, Melkersson-Rosenthal syndrome, Central seven) - XI (Accessory nerve disorder) |
| Polyneuropathies and other disorders of the PNS |
Hereditary and idiopathic (Charcot-Marie-Tooth disease, Dejerine Sottas syndrome, Refsum's disease, Morvan's syndrome) - Guillain-Barré syndrome - Alcoholic polyneuropathy - Neuropathy |
| Diseases of myoneural junction and muscle |
Myasthenia gravis - Primary disorders of muscles (Muscular dystrophy, Myotonic dystrophy, Myotonia congenita, Thomsen disease, Neuromyotonia, Paramyotonia congenita, Centronuclear myopathy, Nemaline myopathy, Mitochondrial myopathy) - Myopathy - Periodic paralysis (Hypokalemic, Hyperkalemic) - Lambert-Eaton myasthenic syndrome |
| Autonomic |
Familial dysautonomia - Horner's syndrome - Multiple system atrophy (Shy-Drager syndrome, Olivopontocerebellar atrophy) |
