Chapter VI
Diseases of the nervous system
(G00-G99)
Episodic and paroxysmal disorders
(G40-G47)
G40 | Epilepsy Latin: Epilepsia | |||||||
Excludes: | Landau-Kleffner syndrome (F80.3) seizure (convulsive) NOS (R56.8) status epilepticus (G41.-) Todd's paralysis (G83.8) | |||||||
G40.0 | Localization-related (focal)(partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset Latin: Epilepsia idiopathica focalis et syndromae epilepticae cum impetu focali | |||||||
Benign childhood epilepsy with centrotemporal EEG spikes Childhood epilepsy with occipital EEG paroxysms | ||||||||
G40.1 | Localization-related (focal)(partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures Latin: Epilepsia symptomatica focalis et syndromae epilepticae cum impetu simplici partiali | |||||||
Attacks without alteration of consciousness Simple partial seizures developing into secondarily generalized seizures | ||||||||
G40.2 | Localization-related (focal)(partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures Latin: Epilepsia symptomatica focalis et syndromae epilepticae cum impetu simplex partiali | |||||||
Attacks with alteration of consciousness, often with automatisms Complex partial seizures developing into secondarily generalized seizures | ||||||||
G40.3 | Generalized idiopathic epilepsy and epileptic syndromes Latin: Epilepsia idiopathica generalisata et syndromae epilepticae | |||||||
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: · atonic · clonic · myoclonic · tonic · tonic-clonic | ||||||||
G40.4 | Other generalized epilepsy and epileptic syndromes Latin: Epilepsia generalisata alia et syndromae epilepticae | |||||||
Epilepsy with: · myoclonic absences · myoclonic-astatic seizures Infantile spasms Lennox-Gastaut syndrome Salaam attacks Symptomatic early myoclonic encephalopathy West's syndrome | ||||||||
G40.5 | Special epileptic syndromes Latin: Syndromae epilepticae specificae | |||||||
Epilepsia partialis continua [Kozhevnikof] Epileptic seizures related to: · alcohol · drugs · hormonal changes · sleep deprivation · stress | ||||||||
Use additional external cause code (Chapter XX), if desired, to identify drug, if drug-induced. | ||||||||
G40.6 | Grand mal seizures, unspecified (with or without petit mal) Latin: Grand mal, non specificatus (cum sive non petit mal) | |||||||
G40.7 | Petit mal, unspecified, without grand mal seizures Latin: Petit mal, non specificatus (sine grand mal) | |||||||
G40.8 | Other epilepsy Latin: Epilepsia alia | |||||||
Epilepsies and epileptic syndromes undetermined as to whether they are focal or generalized | ||||||||
G40.9 | Epilepsy, unspecified Latin: Epilepsia, non specificata | |||||||
Epileptic: · convulsions NOS · fits NOS · seizures NOS |
G41 | Status epilepticus Latin: Status epilepticus | |||||||
G41.0 | Grand mal status epilepticus Latin: Status epilepticus, grand mal | |||||||
Tonic-clonic status epilepticus | ||||||||
Excludes: | epilepsia partialis continua [Kozhevnikof] (G40.5) | |||||||
G41.1 | Petit mal status epilepticus Latin: Status epilepticus, petit mal | |||||||
Epileptic absence status | ||||||||
G41.2 | Complex partial status epilepticus Latin: Status epilepticus complex - partialis | |||||||
G41.8 | Other status epilepticus Latin: Status epilepticus alius | |||||||
G41.9 | Status epilepticus, unspecified Latin: Status epilepticus, non specificatus |
G43 | Migraine Latin: Migraena | |||||||
Use additional external cause code (Chapter XX), if desired, to identify drug, if drug-induced. | ||||||||
Excludes: | headache NOS (R51) | |||||||
G43.0 | Migraine without aura [common migraine] Latin: Migraena simplex (sine aura) | |||||||
G43.1 | Migraine with aura [classical migraine] Latin: Migraena classica (cum aura) | |||||||
Migraine: · aura without headache · basilar · equivalents · familial hemiplegic · with: · acute-onset aura · prolonged aura · typical aura | ||||||||
G43.2 | Status migrainosus Latin: Status migraenosus | |||||||
G43.3 | Complicated migraine Latin: Migraena complicata | |||||||
G43.8 | Other migraine Latin: Migraena alia | |||||||
Ophthalmoplegic migraine Retinal migraine | ||||||||
G43.9 | Migraine, unspecified Latin: Migraena, non specificata |
G44 | Other headache syndromes Latin: Cephalalgiae aliae | |||||||
Excludes: | atypical facial pain (G50.1) headache NOS (R51) trigeminal neuralgia (G50.0) | |||||||
G44.0 | Cluster headache syndrome Latin: Cephalalgiae contractae | |||||||
Chronic paroxysmal hemicrania Cluster headache: · chronic · episodic | ||||||||
G44.1 | Vascular headache, not elsewhere classified Latin: Cephalalgia vascularis | |||||||
Vascular headache NOS | ||||||||
G44.2 | Tension-type headache Latin: Cephalalgia tensionalis | |||||||
Chronic tension-type headache Episodic tension headache Tension headache NOS | ||||||||
G44.3 | Chronic post-traumatic headache Latin: Cephalalgia posttraumatica chronica | |||||||
G44.4 | Drug-induced headache, not elsewhere classified Latin: Cephalalgia medicamentosa | |||||||
Use additional external cause code (Chapter XX), if desired, to identify drug. | ||||||||
G44.8 | Other specified headache syndromes Latin: Cephalalgiae specificatae, aliae |
G45 | Transient cerebral ischaemic attacks and related syndromes Latin: Ischaemia cerebri transitiva et syndromae affines | |||||||
Excludes: | neonatal cerebral ischaemia (P91.0) | |||||||
G45.0 | Vertebro-basilar artery syndrome Latin: Syndroma arteriae vertebrobasalis | |||||||
G45.1 | Carotid artery syndrome (hemispheric) Latin: Syndroma arteriae carotidis (hemisphaericae) | |||||||
G45.2 | Multiple and bilateral precerebral artery syndromes Latin: Syndromae arteriarum praecerebralium bilaterales et multiplices | |||||||
G45.3 | Amaurosis fugax Latin: Amaurosis fugax | |||||||
G45.4 | Transient global amnesia Latin: Amnesia globalis transitiva | |||||||
Excludes: | amnesia NOS (R41.3) | |||||||
G45.8 | Other transient cerebral ischaemic attacks and related syndromes Latin: Ischaemia cerebri transitiva alia et syndromae affines | |||||||
G45.9 | Transient cerebral ischaemic attack, unspecified Latin: Ischaemia cerebri transitoria, non specificata | |||||||
Spasm of cerebral artery Transient cerebral ischaemia NOS |
G46* | Vascular syndromes of brain in cerebrovascular diseases (I60-I67+) Latin: Sindromae vasculares cerebrales (I60-I67+) | |||||||
G46.0* | Middle cerebral artery syndrome (I66.0+) Latin: Syndroma arteriae cerebri mediae (I66.0+) | |||||||
G46.1* | Anterior cerebral artery syndrome(I66.1+) Latin: Syndroma arteriae cerebri anterioris (I66.1+) | |||||||
G46.2* | Posterior cerebral artery syndrome (I66.2+) Latin: Syndroma arteriae cerebri posterioris (I66.2+) | |||||||
G46.3* | Brain stem stroke syndrome (I60-I67+) Latin: Syndroma trunci cerebri (I60-I67+) | |||||||
Syndrome: · Benedikt · Claude · Foville · Millard-Gubler · Wallenberg · Weber | ||||||||
G46.4* | Cerebellar stroke syndrome (I60-I67+) Latin: Syndroma cerebellaris (I60-I67+) | |||||||
G46.5* | Pure motor lacunar syndrome (I60-I67+) Latin: Syndroma lacunaris motoria pura (I60-I67+) | |||||||
G46.6* | Pure sensory lacunar syndrome (I60-I67+) Latin: Syndroma lacunaris sensualis pura (I60-I67+) | |||||||
G46.7* | Other lacunar syndromes (I60-I67+) Latin: Syndromae lacunares aliae (I60-I67+) | |||||||
G46.8* | Other vascular syndromes of brain in cerebrovascular diseases (I60-I67+) Latin: Syndromae cerebrovasculares aliae in morbis cerebrovascularibus (I60-I67+) |
G47 | Sleep disorders Latin: Disordines somni | |||||||
Excludes: | nightmares (F51.5) nonorganic sleep disorders (F51.-) sleep terrors (F51.4) sleepwalking (F51.3) | |||||||
G47.0 | Disorders of initiating and maintaining sleep [insomnias] Latin: Insomnia | |||||||
G47.1 | Disorders of excessive somnolence [hypersomnias] Latin: Hypersomnia | |||||||
G47.2 | Disorders of the sleep-wake schedule Latin: Dysrhythmiae somni | |||||||
Delayed sleep phase syndrome Irregular sleep-wake pattern | ||||||||
G47.3 | Sleep apnoea Latin: Apnoea ad somnum | |||||||
Sleep apnoea: · central · obstructive | ||||||||
Excludes: | pickwickian syndrome (E66.2) sleep apnoea of newborn (P28.3) | |||||||
G47.4 | Narcolepsy and cataplexy Latin: Narcolepsia et cataplexia | |||||||
G47.8 | Other sleep disorders Latin: Disordines somni aliis | |||||||
Kleine-Levin syndrome | ||||||||
G47.9 | Sleep disorder, unspecified Latin: Disordo somni, non specificatus |
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