CHAPTER VI DISEASES OF NERVOUS SYSTEMS

G00	Bacterial meningitis, not elsewhere classified
G00.0	Haemophilus meningitis
G00.1	Pneumococcal meningitis
G00.2	Streptococcal meningitis
G00.3	Staphylococcal meningitis
G00.8	Other bacterial meningitis
G00.9	Bacterial meningitis, unspecified
G01*	Meningitis in bacterial diseases classified elsewhere
G02*	Meningitis in other infectious and parasitic diseases classifiedelsewhere
G02.0*	Meningitis in viral diseases classified elsewhere
G02.1*	Meningitis in mycoses
G02.8*	Meningitis in other specified infectious and parasitic diseasesclassified elsewhere
G03	Meningitis due to other and unspecified causes
G03.0	Nonpyogenic meningitis
G03.1	Chronic meningitis
G03.2	Benign recurrent meningitis [Mollaret]
G03.8	Meningitis due to other specified causes
G03.9	Meningitis, unspecified
G04	Encephalitis, myelitis and encephalomyelitis
G04.0	Acute disseminated encephalitis
G04.1	Tropical spastic paraplegia
G04.2	Bacterial meningoencephalitis and meningomyelitis, not elsewhereclassified
G04.8	Other encephalitis, myelitis and encephalomyelitis
G04.9	Encephalitis, myelitis and encephalomyelitis, unspecified
G05*	Encephalitis, myelitis and encephalomyelitis in diseases classifiedelsewhere
G05.0*	Encephalitis, myelitis and encephalomyelitis in bacterial diseasesclassified elsewhere
G05.1*	Encephalitis, myelitis and encephalomyelitis in viral diseasesclassified elsewhere
G05.2*	Encephalitis, myelitis and encephalomyelitis in other infectious andparasitic diseases classified el
G05.8*	Encephalitis, myelitis and encephalomyelitis in other diseasesclassified elsewhere
G06	Intracranial and intraspinal abscess and granuloma
G06.0	Intracranial abscess and granuloma
G06.1	Intraspinal abscess and granuloma
G06.2	Extradural and subdural abscess, unspecified
G07*	Intracranial and intraspinal abscess and granuloma in diseasesclassified elsewhere
G08	Intracranial and intraspinal phlebitis and thrombophlebitis
G09	Sequelae of inflammatory diseases of central nervous system
G10	Huntington's disease
G11	Hereditary ataxia
G11.0	Congenital nonprogressive ataxia
G11.1	Early-onset cerebellar ataxia
G11.2	Late-onset cerebellar ataxia
G11.3	Cerebellar ataxia with defective DNA repair
G11.4	Hereditary spastic paraplegia
G11.8	Other hereditary ataxias
G11.9	Hereditary ataxia, unspecified
G12	Spinal muscular atrophy and related syndromes
G12.0	Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
G12.1	Other inherited spinal muscular atrophy
G12.2	Motor neuron disease
G12.8	Other spinal muscular atrophies and related syndromes
G12.9	Spinal muscular atrophy, unspecified
G13*	Systemic atrophies primarily affecting central nervous system indiseases classified elsewhere
G13.0*	Paraneoplastic neuromyopathy and neuropathy
G13.1*	Other systemic atrophy primarily affecting central nervous system inneoplastic disease
G13.2*	Systemic atrophy primarily affecting central nervous system inmyxoedema (E00.1+, E03.-+)
G13.8*	Systemic atrophy primarily affecting central nervous system in otherdiseases classified elsewhere
G20	Parkinson's disease
G21	Secondary parkinsonism
G21.0	Malignant neuroleptic syndrome
G21.1	Other drug-induced secondary parkinsonism
G21.2	Secondary parkinsonism due to other external agents
G21.3	Postencephalitic parkinsonism
G21.8	Other secondary parkinsonism
G21.9	Secondary parkinsonism, unspecified
G22*	Parkinsonism in diseases classified elsewhere
G23	Other degenerative diseases of basal ganglia
G23.0	Hallervorden-Spatz disease
G23.1	Progressive supranuclear ophthalmoplegia[Steele-Richardson-Olszewski]
G23.2	Striatonigral degeneration
G23.8	Other specified degenerative diseases of basal ganglia
G23.9	Degenerative disease of basal ganglia, unspecified
G24	Dystonia
G24.0	Drug-induced dystonia
G24.1	Idiopathic familial dystonia
G24.2	Idiopathic nonfamilial dystonia
G24.3	Spasmodic torticollis
G24.4	Idiopathic orofacial dystonia
G24.5	Blepharospasm
G24.8	Other dystonia
G24.9	Dystonia, unspecified
G25	Other extrapyramidal and movement disorders
G25.0	Essential tremor
G25.1	Drug-induced tremor
G25.2	Other specified forms of tremor
G25.3	Myoclonus
G25.4	Drug-induced chorea
G25.5	Other chorea
G25.6	Drug-induced tics and other tics of organic origin
G25.8	Other specified extrapyramidal and movement disorders
G25.9	Extrapyramidal and movement disorder, unspecified
G26*	Extrapyramidal and movement disorders in diseases classifiedelsewhere
G30	Alzheimer's disease
G30.0	Alzheimer's disease with early onset
G30.1	Alzheimer's disease with late onset
G30.8	Other Alzheimer's disease
G30.9	Alzheimer's disease, unspecified
G31	Other degenerative diseases of nervous system, not elsewhereclassified
G31.0	Circumscribed brain atrophy
G31.1	Senile degeneration of brain, not elsewhere classified
G31.2	Degeneration of nervous system due to alcohol
G31.8	Other specified degenerative diseases of nervous system
G31.9	Degenerative disease of nervous system, unspecified
G32*	Other degenerative disorders of nervous system in diseasesclassified elsewhere
G32.0*	Subacute combined degeneration of spinal cord in diseases classifiedelsewhere
G32.8*	Other specified degenerative disorders of nervous system in diseasesclassified elsewhere
G35	Multiple sclerosis
G36	Other acute disseminated demyelination
G36.0	Neuromyelitis optica [Devic]
G36.1	Acute and subacute haemorrhagic leukoencephalitis [Hurst]
G36.8	Other specified acute disseminated demyelination
G36.9	Acute disseminated demyelination, unspecified
G37	Other demyelinating diseases of central nervous system
G37.0	Diffuse sclerosis
G37.1	Central demyelination of corpus callosum
G37.2	Central pontine myelinolysis
G37.3	Acute transverse myelitis in demyelinating disease of centralnervous system
G37.4	Subacute necrotizing myelitis
G37.5	Concentric sclerosis [Bal¢]
G37.8	Other specified demyelinating diseases of central nervous system
G37.9	Demyelinating disease of central nervous system, unspecified
G40	Epilepsy
G40.0	Localization-related (focal)(partial) idiopathic epilepsy andepileptic syndromes with seizures of lo
G40.1	Localization-related (focal)(partial) symptomatic epilepsy andepileptic syndromes with simple partia
G40.2	Localization-related (focal)(partial) symptomatic epilepsy andepileptic syndromes with complex parti
G40.3	Generalized idiopathic epilepsy and epileptic syndromes
G40.4	Other generalized epilepsy and epileptic syndromes
G40.5	Special epileptic syndromes
G40.6	Grand mal seizures, unspecified (with or without petit mal)
G40.7	Petit mal, unspecified, without grand mal seizures
G40.8	Other epilepsy
G40.9	Epilepsy, unspecified
G41	Status epilepticus
G41.0	Grand mal status epilepticus
G41.1	Petit mal status epilepticus
G41.2	Complex partial status epilepticus
G41.8	Other status epilepticus
G41.9	Status epilepticus, unspecified
G43	Migraine
G43.0	Migraine without aura [common migraine]
G43.1	Migraine with aura [classical migraine]
G43.2	Status migrainosus
G43.3	Complicated migraine
G43.8	Other migraine
G43.9	Migraine, unspecified
G44	Other headache syndromes
G44.0	Cluster headache syndrome
G44.1	Vascular headache, not elsewhere classified
G44.2	Tension-type headache
G44.3	Chronic post-traumatic headache
G44.4	Drug-induced headache, not elsewhere classified
G44.8	Other specified headache syndromes
G45	Transient cerebral ischaemic attacks and related syndromes
G45.0	Vertebro-basilar artery syndrome
G45.1	Carotid artery syndrome (hemispheric)
G45.2	Multiple and bilateral precerebral artery syndromes
G45.3	Amaurosis fugax
G45.4	Transient global amnesia
G45.8	Other transient cerebral ischaemic attacks and related syndromes
G45.9	Transient cerebral ischaemic attack, unspecified
G46*	Vascular syndromes of brain in cerebrovascular diseases (I60-I67+)
G46.0*	Middle cerebral artery syndrome (I66.0+)
G46.1*	Anterior cerebral artery syndrome (I66.1+)
G46.2*	Posterior cerebral artery syndrome (I66.2+)
G46.3*	Brain stem stroke syndrome (I60-I67+)
G46.4*	Cerebellar stroke syndrome (I60-I67+)
G46.5*	Pure motor lacunar syndrome (I60-I67+)
G46.6*	Pure sensory lacunar syndrome (I60-I67+)
G46.7*	Other lacunar syndromes (I60-I67+)
G46.8*	Other vascular syndromes of brain in cerebrovascular diseases(I60-I67+)
G47	Sleep disorders
G47.0	Disorders of initiating and maintaining sleep [insomnias]
G47.1	Disorders of excessive somnolence [hypersomnias]
G47.2	Disorders of the sleep-wake schedule
G47.3	Sleep apnoea
G47.4	Narcolepsy and cataplexy
G47.8	Other sleep disorders
G47.9	Sleep disorder, unspecified
G50	Disorders of trigeminal nerve
G50.0	Trigeminal neuralgia
G50.1	Atypical facial pain
G50.8	Other disorders of trigeminal nerve
G50.9	Disorder of trigeminal nerve, unspecified
G51	Facial nerve disorders
G51.0	Bell's palsy
G51.1	Geniculate ganglionitis
G51.2	Melkersson's syndrome
G51.3	Clonic hemifacial spasm
G51.4	Facial myokymia
G51.8	Other disorders of facial nerve
G51.9	Disorder of facial nerve, unspecified
G52	Disorders of other cranial nerves
G52.0	Disorders of olfactory nerve
G52.1	Disorders of glossopharyngeal nerve
G52.2	Disorders of vagus nerve
G52.3	Disorders of hypoglossal nerve
G52.7	Disorders of multiple cranial nerves
G52.8	Disorders of other specified cranial nerves
G52.9	Cranial nerve disorder, unspecified
G53*	Cranial nerve disorders in diseases classified elsewhere
G53.0*	Postzoster neuralgia (B02.2+)
G53.1*	Multiple cranial nerve palsies in infectious and parasitic diseasesclassified elsewhere (A00-B99+)
G53.2*	Multiple cranial nerve palsies in sarcoidosis (D86.8+)
G53.3*	Multiple cranial nerve palsies in neoplastic disease (C00-D48+)
G53.8*	Other cranial nerve disorders in other diseases classified elsewhere
G54	Nerve root and plexus disorders
G54.0	Brachial plexus disorders
G54.1	Lumbosacral plexus disorders
G54.2	Cervical root disorders, not elsewhere classified
G54.3	Thoracic root disorders, not elsewhere classified
G54.4	Lumbosacral root disorders, not elsewhere classified
G54.5	Neuralgic amyotrophy
G54.6	Phantom limb syndrome with pain
G54.7	Phantom limb syndrome without pain
G54.8	Other nerve root and plexus disorders
G54.9	Nerve root and plexus disorder, unspecified
G55*	Nerve root and plexus compressions in diseases classified elsewhere
G55.0*	Nerve root and plexus compressions in neoplastic disease (C00-D48+)
G55.1*	Nerve root and plexus compressions in intervertebral disc disorders(M50-M51+)
G55.2*	Nerve root and plexus compressions in spondylosis (M47.-+)
G55.3*	Nerve root and plexus compressions in other dorsopathies (M45-M46+,M48.-+, M53-M54+)
G55.8*	Nerve root and plexus compressions in other diseases classifiedelsewhere
G56	Mononeuropathies of upper limb
G56.0	Carpal tunnel syndrome
G56.1	Other lesions of median nerve
G56.2	Lesion of ulnar nerve
G56.3	Lesion of radial nerve
G56.4	Causalgia
G56.8	Other mononeuropathies of upper limb
G56.9	Mononeuropathy of upper limb, unspecified
G57	Mononeuropathies of lower limb
G57.0	Lesion of sciatic nerve
G57.1	Meralgia paraesthetica
G57.2	Lesion of femoral nerve
G57.3	Lesion of lateral popliteal nerve
G57.4	Lesion of medial popliteal nerve
G57.5	Tarsal tunnel syndrome
G57.6	Lesion of plantar nerve
G57.8	Other mononeuropathies of lower limb
G57.9	Mononeuropathy of lower limb, unspecified
G58	Other mononeuropathies
G58.0	Intercostal neuropathy
G58.7	Mononeuritis multiplex
G58.8	Other specified mononeuropathies
G58.9	Mononeuropathy, unspecified
G59*	Mononeuropathy in diseases classified elsewhere
G59.0*	Diabetic mononeuropathy (E10-E14+ with common fourth character .4)
G59.8*	Other mononeuropathies in diseases classified elsewhere
G60	Hereditary and idiopathic neuropathy
G60.0	Hereditary motor and sensory neuropathy
G60.1	Refsum's disease
G60.2	Neuropathy in association with hereditary ataxia
G60.3	Idiopathic progressive neuropathy
G60.8	Other hereditary and idiopathic neuropathies
G60.9	Hereditary and idiopathic neuropathy, unspecified
G61	Inflammatory polyneuropathy
G61.0	Guillain-Barr‚ syndrome
G61.1	Serum neuropathy
G61.8	Other inflammatory polyneuropathies
G61.9	Inflammatory polyneuropathy, unspecified
G62	Other polyneuropathies
G62.0	Drug-induced polyneuropathy
G62.1	Alcoholic polyneuropathy
G62.2	Polyneuropathy due to other toxic agents
G62.8	Other specified polyneuropathies
G62.9	Polyneuropathy, unspecified
G63*	Polyneuropathy in diseases classified elsewhere
G63.0*	Polyneuropathy in infectious and parasitic diseases classifiedelsewhere
G63.1*	Polyneuropathy in neoplastic disease (C00-D48+)
G63.2*	Diabetic polyneuropathy (E10-E14+ with common fourth character .4)
G63.3*	Polyneuropathy in other endocrine and metabolic diseases (E00-E07+,E15-E16+, E20-E34+, E70-E89+)
G63.4*	Polyneuropathy in nutritional deficiency (E40-E64+)
G63.5*	Polyneuropathy in systemic connective tissue disorders (M30-M35+)
G63.6*	Polyneuropathy in other musculoskeletal disorders (M00-M25+,M40-M96+)
G63.8*	Polyneuropathy in other diseases classified elsewhere
G64	Other disorders of peripheral nervous system
G70	Myasthenia gravis and other myoneural disorders
G70.0	Myasthenia gravis
G70.1	Toxic myoneural disorders
G70.2	Congenital and developmental myasthenia
G70.8	Other specified myoneural disorders
G70.9	Myoneural disorder, unspecified
G71	Primary disorders of muscles
G71.0	Muscular dystrophy
G71.1	Myotonic disorders
G71.2	Congenital myopathies
G71.3	Mitochondrial myopathy, not elsewhere classified
G71.8	Other primary disorders of muscles
G71.9	Primary disorder of muscle, unspecified
G72	Other myopathies
G72.0	Drug-induced myopathy
G72.1	Alcoholic myopathy
G72.2	Myopathy due to other toxic agents
G72.3	Periodic paralysis
G72.4	Inflammatory myopathy, not elsewhere classified
G72.8	Other specified myopathies
G72.9	Myopathy, unspecified
G73*	Disorders of myoneural junction and muscle in diseases classifiedelsewhere
G73.0*	Myasthenic syndromes in endocrine diseases
G73.1*	Eaton-Lambert syndrome (C80+)
G73.2*	Other myasthenic syndromes in neoplastic disease (C00-D48+)
G73.3*	Myasthenic syndromes in other diseases classified elsewhere
G73.4*	Myopathy in infectious and parasitic diseases classified elsewhere
G73.5*	Myopathy in endocrine diseases
G73.6*	Myopathy in metabolic diseases
G73.7*	Myopathy in other diseases classified elsewhere
G80	Infantile cerebral palsy
G80.0	Spastic cerebral palsy
G80.1	Spastic diplegia
G80.2	Infantile hemiplegia
G80.3	Dyskinetic cerebral palsy
G80.4	Ataxic cerebral palsy
G80.8	Other infantile cerebral palsy
G80.9	Infantile cerebral palsy, unspecified
G81	Hemiplegia
G81.0	Flaccid hemiplegia
G81.1	Spastic hemiplegia
G81.9	Hemiplegia, unspecified
G82	Paraplegia and tetraplegia
G82.0	Flaccid paraplegia
G82.1	Spastic paraplegia
G82.2	Paraplegia, unspecified
G82.3	Flaccid tetraplegia
G82.4	Spastic tetraplegia
G82.5	Tetraplegia, unspecified
G83	Other paralytic syndromes
G83.0	Diplegia of upper limbs
G83.1	Monoplegia of lower limb
G83.2	Monoplegia of upper limb
G83.3	Monoplegia, unspecified
G83.4	Cauda equina syndrome
G83.8	Other specified paralytic syndromes
G83.9	Paralytic syndrome, unspecified
G90	Disorders of autonomic nervous system
G90.0	Idiopathic peripheral autonomic neuropathy
G90.1	Familial dysautonomia [Riley-Day]
G90.2	Horner's syndrome
G90.3	Multi-system degeneration
G90.8	Other disorders of autonomic nervous system
G90.9	Disorder of autonomic nervous system, unspecified
G91	Hydrocephalus
G91.0	Communicating hydrocephalus
G91.1	Obstructive hydrocephalus
G91.2	Normal-pressure hydrocephalus
G91.3	Post-traumatic hydrocephalus, unspecified
G91.8	Other hydrocephalus
G91.9	Hydrocephalus, unspecified
G92	Toxic encephalopathy
G93	Other disorders of brain
G93.0	Cerebral cysts
G93.1	Anoxic brain damage, not elsewhere classified
G93.2	Benign intracranial hypertension
G93.3	Postviral fatigue syndrome
G93.4	Encephalopathy, unspecified
G93.5	Compression of brain
G93.6	Cerebral oedema
G93.7	Reye's syndrome
G93.8	Other specified disorders of brain
G93.9	Disorder of brain, unspecified
G94*	Other disorders of brain in diseases classified elsewhere
G94.0*	Hydrocephalus in infectious and parasitic diseases classifiedelsewhere (A00-B99+)
G94.1*	Hydrocephalus in neoplastic disease (C00-D48+)
G94.2*	Hydrocephalus in other diseases classified elsewhere
G94.8*	Other specified disorders of brain in diseases classified elsewhere
G95	Other diseases of spinal cord
G95.0	Syringomyelia and syringobulbia
G95.1	Vascular myelopathies
G95.2	Cord compression, unspecified
G95.8	Other specified diseases of spinal cord
G95.9	Disease of spinal cord, unspecified
G96	Other disorders of central nervous system
G96.0	Cerebrospinal fluid leak
G96.1	Disorders of meninges, not elsewhere classified
G96.8	Other specified disorders of central nervous system
G96.9	Disorder of central nervous system, unspecified
G97	Postprocedural disorders of nervous system, not elsewhere classified
G97.0	Cerebrospinal fluid leak from spinal puncture
G97.1	Other reaction to spinal and lumbar puncture
G97.2	Intracranial hypotension following ventricular shunting
G97.8	Other postprocedural disorders of nervous system
G97.9	Postprocedural disorder of nervous system, unspecified
G98	Other disorders of nervous system, not elsewhere classified
G99*	Other disorders of nervous system in diseases classified elsewhere
G99.0*	Autonomic neuropathy in endocrine and metabolic diseases
G99.1*	Other disorders of autonomic nervous system in other diseasesclassified elsewhere
G99.2*	Myelopathy in diseases classified elsewhere
G99.8*	Other specified disorders of nervous system in diseases classifiedelsewhere