ICD-10 Chapter VI: Diseases of the nervous system

(G40.) Epilepsy
- (G 40.0) Localization-related (focal)(partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
- (G 40.1) Localization-related (focal)(partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures
- (G 40.2) Localization-related (focal)(partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures
- (G40.3) Generalized idiopathic epilepsy and epileptic syndromes
  - Benign:
    - myoclonic epilepsy in infancy
    - neonatal convulsions (familial)
  - Childhood absence epilepsy (pyknolepsy)
  - Epilepsy with grand mal seizures on awakening
  - Juvenile:
    - absence epilepsy
    - myoclonic epilepsy (impulsive petit mal)
  - Nonspecific epileptic seizures:
- (G40.4) Other generalized epilepsy and epileptic syndromes
- (G40.5) Special epileptic syndromes
  - Epilepsia partialis continua (Kozhevnikof)
- (G 40.6) Grand mal seizures, unspecified (with or without petit mal)
- (G 40.7) Petit mal, unspecified, without grand mal seizures
- (G40.8) Other epilepsy
  - Epilepsies and epileptic syndromes undetermined as to whether they are focal or generalized
- (G 40.9) Epilepsy, unspecified

(G41.) Status epilepticus
- (G 41.0) Grand mal status epilepticus
- (G 41.1) Petit mal status epilepticus
- (G 41.2) Complex partial status epilepticus
- (G 41.8) Other status epilepticus
- (G 41.9) Status epilepticus, unspecified

(G43.) Migraine
- (G 43.0) Migraine without aura (common migraine)
- (G 43.1) Migraine with aura (classical migraine)
- (G 43.2) Status migrainosus
- (G 43.3) Complicated migraine
- (G 43.8) Other migraine
- (G 43.9) Migraine, unspecified

(G44.) Other headache syndromes
- (G 44.0) Cluster headache syndrome
- (G 44.1) Vascular headache, not elsewhere classified
- (G 44.2) Tension-type headache
- (G 44.3) Chronic post-traumatic headache
- (G 44.4) Drug-induced headache, not elsewhere classified
- (G 44.8) Other specified headache syndromes

(G45.) Transient cerebral ischaemic attacks and related syndromes
- (G 45.0) Vertebro-basilar artery syndrome
- (G 45.1) Carotid artery syndrome (hemispheric)
- (G 45.2) Multiple and bilateral precerebral artery syndromes
- (G 45.3) Amaurosis fugax
- (G 45.4) Transient global amnesia
- (G 45.8) Other transient cerebral ischaemic attacks and related syndromes
- (G 45.9) Transient cerebral ischaemic attack, unspecified

(G46.) Vascular syndromes of brain in cerebrovascular diseases

(G47.) Sleep disorders
- (G 47.0) Disorders of initiating and maintaining sleep (insomnias)
- (G 47.1) Disorders of excessive somnolence (hypersomnias)
- (G 47.2) Disruptions in circadian rhythm including jet lag
- (G 47.3) Sleep apnoea
- (G 47.4) Narcolepsy and cataplexy

(G50-G59) Nerve, nerve root and plexus disorders

(G50.) Disorders of trigeminal nerve (V)
- (G 50.0) Trigeminal neuralgia

(G51.) Facial nerve disorders (VII)
- (G51.0) Bell's palsy
  - Facial palsy
- (G 51.1) Geniculate ganglionitis
- (G51.2) Melkersson's syndrome
  - Melkersson-Rosenthal syndrome
- (G 51.3) Clonic hemifacial spasm
- (G 51.4) Facial myokymia
- (G 51.8) Other disorders of facial nerve
- (G 51.8) Disorder of facial nerve, unspecified

(G52.) Disorders of other cranial nerves
- (G 52.0) Disorders of olfactory nerve (I)
- (G 52.1) Disorders of glossopharyngeal nerve (IX)
- (G 52.2) Disorders of vagus nerve (X)
- (G 52.3) Disorders of hypoglossal nerve (XII)
- (G 52.7) Disorders of multiple cranial nerves
- (G 52.8) Disorders of other specified cranial nerves
- (G 52.9) Cranial nerve disorder, unspecified

(G 53.) Cranial nerve disorders in diseases classified elsewhere

(G54.) Nerve root and plexus disorders
- (G54.0) Brachial plexus disorders
  - Thoracic outlet syndrome
- (G 54.1) Lumbosacral plexus disorders
- (G 54.2) Cervical root disorders, not elsewhere classified
- (G 54.3) Thoracic root disorders, not elsewhere classified
- (G 54.4) Lumbosacral root disorders, not elsewhere classified
- (G54.5) Neuralgic amyotrophy
  - Parsonage-Aldren-Turner syndrome
- (G 54.6) Phantom limb syndrome with pain
- (G 54.7) Phantom limb syndrome without pain
(G 55.) Nerve root and plexus compressions in diseases classified elsewhere
(G56.) Mononeuropathies of upper limb
- (G 56.0) Carpal tunnel syndrome
- (G 56.4) Causalgia
(G57.) Mononeuropathies of lower limb
- (G 57.0) Lesion of sciatic nerve
- (G 57.1) Meralgia paraesthetica
- (G 57.2) Lesion of femoral nerve
- (G 57.3) Lesion of lateral popliteal nerve
- (G 57.4) Lesion of medial popliteal nerve
- (G 57.5) Tarsal tunnel syndrome
- (G57.6) Lesion of plantar nerve
  - Morton's metatarsalgia
- (G 57.8) Other mononeuropathies of lower limb
- (G 57.9) Mononeuropathy of lower limb, unspecified

(G58.) Other mononeuropathies
- (G 58.0) Intercostal neuropathy
- (G 58.7) Mononeuritis multiplex
- (G 58.8) Other specified mononeuropathies
- (G 58.9) Mononeuropathy, unspecified

(G 59.) Mononeuropathy in diseases classified elsewhere

(G 94.) Other disorders of brain in diseases classified elsewhere

(G95.) Other diseases of spinal cord
- (G 95.0) Syringomyelia and syringobulbia
- (G 95.1) Vascular myelopathies
- (G 95.2) Cord compression, unspecified
- (G 95.8) Other specified diseases of spinal cord
- (G95.9) Disease of spinal cord, unspecified
  - Myelopathy NOS

(G 96.) Other disorders of central nervous system
(G 97.) Postprocedural disorders of nervous system, not elsewhere classified
(G 98.) Other disorders of nervous system, not elsewhere classified
(G 99.) Other disorders of nervous system in diseases classified elsewhere

v • d • e Pathology of the nervous system, primarily CNS (G00-G47, 320-349)
Inflammatory diseases of the CNS	Meningitis (Arachnoiditis) - Encephalitis - Myelitis - Encephalomyelitis (Acute disseminated) - Tropical spastic paraparesis
Systemic atrophies primarily affecting the CNS	Huntington's Spinocerebellar ataxia (Friedreich's ataxia, Ataxia telangiectasia, Hereditary spastic paraplegia) Spinal muscular atrophy: Werdnig-Hoffman - Kugelberg-Welander - Fazio Londe - MND (ALS, PMA, PBP, PP, PLS)
Extrapyramidal and movement disorders	Parkinson's disease - Neuroleptic malignant syndrome - Postencephalitic parkinsonism - Pantothenate kinase-associated neurodegeneration - Progressive supranuclear palsy - Striatonigral degeneration Dystonia/Dyskinesia (Spasmodic torticollis, Meige's, Blepharospasm) Essential tremor - Myoclonus - Lafora Chorea (Choreoathetosis) - Restless legs - Stiff person
Other degenerative / demyelinating diseases	Alzheimer's - Pick's - Alpers' - Dementia with Lewy bodies - Leigh's demyelinating: Multiple sclerosis - Devic's - Central pontine myelinolysis - Transverse myelitis
Seizure/epilepsy	Focal (Simple partial, Complex partial) - Generalised (Tonic-clonic, Absence, Atonic, Benign familial neonatal) Lennox-Gastaut - West - Epilepsia partialis continua - Status epilepticus (Complex partial status epilepticus)
Headache	Migraine (Familial hemiplegic) - Cluster - Vascular - Tension
Vascular	Transient ischemic attack (Amaurosis fugax, Transient global amnesia) Cerebrovascular disease (MCA, ACA, PCA, Foville's, Millard-Gubler, Lateral medullary, Weber's, Lacunar stroke)
Sleep disorders	Insomnia - Hypersomnia - Sleep apnea (Ondine's curse) - Narcolepsy - Cataplexy - Kleine-Levin - Circadian rhythm sleep - Delayed sleep phase - Advanced sleep phase
Other	Intracranial hypertension: Hydrocephalus (Normal pressure) - Idiopathic intracranial hypertension Encephalopathy - Brain herniation - Cerebral edema - Reye's - Syringomyelia - Syringobulbia - Spinal cord compression

v • d • e Nervous system pathology, primarily PNS (G50-G99, 350-359)
Nerve, nerve root and plexus disorders (neuropathy, radiculopathy, plexopathy)	cranial nerve: V (Trigeminal neuralgia) - VII (Facial nerve paralysis, Bell's palsy, Melkersson-Rosenthal syndrome, Central seven) - XI (Accessory nerve disorder) nerve root and plexus: Brachial plexus lesion - Thoracic outlet syndrome - Phantom limb mononeuropathy: upper limb (Carpal tunnel syndrome, Ulnar nerve entrapment, Radial neuropathy) - Causalgia - lower limb (Meralgia paraesthetica, Tarsal tunnel syndrome, Morton's neuroma) - Mononeuritis multiplex
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
Diseases of myoneural junction	autoimmune: Myasthenia gravis - Lambert-Eaton myasthenic syndrome
Diseases of muscle (myopathy)	Muscular dystrophy myotonic (Myotonic dystrophy, Myotonia congenita, Thomsen disease, Neuromyotonia, Paramyotonia congenita) congenital myopathy (Centronuclear myopathy, Nemaline myopathy, Central core disease) Mitochondrial myopathy periodic paralysis: Hypokalemic - Hyperkalemic
Autonomic	Familial dysautonomia - Horner's syndrome - Multiple system atrophy (Shy-Drager syndrome, Olivopontocerebellar atrophy)

v • d • e 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	Flaccid paralysis - Spastic diplegia - Spastic paraplegia
Specific types	Cerebral palsy - Cauda equina syndrome - Locked-In syndrome

ICD-10 Chapter VI: Diseases of the nervous system

G00-G99 - Diseases of the nervous system

(G00-G09) Inflammatory diseases of the central nervous system

(G10-G13) Systemic atrophies primarily affecting the central nervous system

(G20-G26) Extrapyramidal and movement disorders

(G30-G32) Other degenerative diseases of the nervous system

(G35-G37) Demyelinating diseases of the central nervous system

(G40-G47) Episodic and paroxysmal disorders

(G50-G59) Nerve, nerve root and plexus disorders

(G60-G64) Polyneuropathies and other disorders of the peripheral nervous system

(G70-G73) Diseases of myoneural junction and muscle

(G80-G83) Cerebral palsy and other paralytic syndromes

(G90-G99) Other disorders of the nervous system

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