Episodic and paroxysmal disorders (G40-G47)

Chapter 6: Diseases of the nervous system (G00-G99)

307 codes in this range

G40

Epilepsy and recurrent seizures

G40.0

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset

G40.00

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable

G40.001

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, with status epilepticus

G40.009

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, without status epilepticus

G40.01

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable

G40.011

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, with status epilepticus

G40.019

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, without status epilepticus

G40.1

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures

G40.10

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable

G40.101

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, with status epilepticus

G40.109

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus

G40.11

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable

G40.111

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, with status epilepticus

G40.119

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, without status epilepticus

G40.2

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures

G40.20

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable

G40.201

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, with status epilepticus

G40.209

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, without status epilepticus

G40.21

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable

G40.211

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus

G40.219

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus

G40.3

Generalized idiopathic epilepsy and epileptic syndromes

G40.30

Generalized idiopathic epilepsy and epileptic syndromes, not intractable

G40.301

Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus

G40.309

Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus

G40.31

Generalized idiopathic epilepsy and epileptic syndromes, intractable

G40.311

Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticus

G40.319

Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus

G40.4

Other generalized epilepsy and epileptic syndromes

G40.40

Other generalized epilepsy and epileptic syndromes, not intractable

G40.401

Other generalized epilepsy and epileptic syndromes, not intractable, with status epilepticus

G40.409

Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus

G40.41

Other generalized epilepsy and epileptic syndromes, intractable

G40.411

Other generalized epilepsy and epileptic syndromes, intractable, with status epilepticus

G40.419

Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus

G40.42

Cyclin-Dependent Kinase-Like 5 Deficiency Disorder

G40.5

Epileptic seizures related to external causes

G40.50

Epileptic seizures related to external causes, not intractable

G40.501

Epileptic seizures related to external causes, not intractable, with status epilepticus

G40.509

Epileptic seizures related to external causes, not intractable, without status epilepticus

G40.8

Other epilepsy and recurrent seizures

G40.80

Other epilepsy

G40.801

Other epilepsy, not intractable, with status epilepticus

G40.802

Other epilepsy, not intractable, without status epilepticus

G40.803

Other epilepsy, intractable, with status epilepticus

G40.804

Other epilepsy, intractable, without status epilepticus

G40.81

Lennox-Gastaut syndrome

G40.811

Lennox-Gastaut syndrome, not intractable, with status epilepticus

G40.812

Lennox-Gastaut syndrome, not intractable, without status epilepticus

G40.813

Lennox-Gastaut syndrome, intractable, with status epilepticus

G40.814

Lennox-Gastaut syndrome, intractable, without status epilepticus

G40.82

Epileptic spasms

G40.821

Epileptic spasms, not intractable, with status epilepticus

G40.822

Epileptic spasms, not intractable, without status epilepticus

G40.823

Epileptic spasms, intractable, with status epilepticus

G40.824

Epileptic spasms, intractable, without status epilepticus

G40.83

Dravet syndrome

G40.833

Dravet syndrome, intractable, with status epilepticus

G40.834

Dravet syndrome, intractable, without status epilepticus

G40.84

KCNQ2-related epilepsy

G40.841

KCNQ2-related epilepsy, not intractable, with status epilepticus

G40.842

KCNQ2-related epilepsy, not intractable, without status epilepticus

G40.843

KCNQ2-related epilepsy, intractable, with status epilepticus

G40.844

KCNQ2-related epilepsy, intractable, without status epilepticus

G40.89

Other seizures

G40.9

Epilepsy, unspecified

G40.90

Epilepsy, unspecified, not intractable

G40.901

Epilepsy, unspecified, not intractable, with status epilepticus

G40.909

Epilepsy, unspecified, not intractable, without status epilepticus

G40.91

Epilepsy, unspecified, intractable

G40.911

Epilepsy, unspecified, intractable, with status epilepticus

G40.919

Epilepsy, unspecified, intractable, without status epilepticus

G40.A

Absence epileptic syndrome

G40.A0

Absence epileptic syndrome, not intractable

G40.A01

Absence epileptic syndrome, not intractable, with status epilepticus

G40.A09

Absence epileptic syndrome, not intractable, without status epilepticus

G40.A1

Absence epileptic syndrome, intractable

G40.A11

Absence epileptic syndrome, intractable, with status epilepticus

G40.A19

Absence epileptic syndrome, intractable, without status epilepticus

G40.B

Juvenile myoclonic epilepsy [impulsive petit mal]

G40.B0

Juvenile myoclonic epilepsy, not intractable

G40.B01

Juvenile myoclonic epilepsy, not intractable, with status epilepticus

G40.B09

Juvenile myoclonic epilepsy, not intractable, without status epilepticus

G40.B1

Juvenile myoclonic epilepsy, intractable

G40.B11

Juvenile myoclonic epilepsy, intractable, with status epilepticus

G40.B19

Juvenile myoclonic epilepsy, intractable, without status epilepticus

G40.C

Lafora progressive myoclonus epilepsy

G40.C0

Lafora progressive myoclonus epilepsy, not intractable

G40.C01

Lafora progressive myoclonus epilepsy, not intractable, with status epilepticus

G40.C09

Lafora progressive myoclonus epilepsy, not intractable, without status epilepticus

G40.C1

Lafora progressive myoclonus epilepsy, intractable

G40.C11

Lafora progressive myoclonus epilepsy, intractable, with status epilepticus

G40.C19

Lafora progressive myoclonus epilepsy, intractable, without status epilepticus

G43

Migraine

G43.0

Migraine without aura

G43.00

Migraine without aura, not intractable

G43.001

Migraine without aura, not intractable, with status migrainosus

G43.009

Migraine without aura, not intractable, without status migrainosus

G43.01

Migraine without aura, intractable

G43.011

Migraine without aura, intractable, with status migrainosus

G43.019

Migraine without aura, intractable, without status migrainosus

G43.1

Migraine with aura

G43.10

Migraine with aura, not intractable

G43.101

Migraine with aura, not intractable, with status migrainosus

G43.109

Migraine with aura, not intractable, without status migrainosus

G43.11

Migraine with aura, intractable

G43.111

Migraine with aura, intractable, with status migrainosus

G43.119

Migraine with aura, intractable, without status migrainosus

G43.4

Hemiplegic migraine

G43.40

Hemiplegic migraine, not intractable

G43.401

Hemiplegic migraine, not intractable, with status migrainosus

G43.409

Hemiplegic migraine, not intractable, without status migrainosus

G43.41

Hemiplegic migraine, intractable

G43.411

Hemiplegic migraine, intractable, with status migrainosus

G43.419

Hemiplegic migraine, intractable, without status migrainosus

G43.5

Persistent migraine aura without cerebral infarction

G43.50

Persistent migraine aura without cerebral infarction, not intractable

G43.501

Persistent migraine aura without cerebral infarction, not intractable, with status migrainosus

G43.509

Persistent migraine aura without cerebral infarction, not intractable, without status migrainosus

G43.51

Persistent migraine aura without cerebral infarction, intractable

G43.511

Persistent migraine aura without cerebral infarction, intractable, with status migrainosus

G43.519

Persistent migraine aura without cerebral infarction, intractable, without status migrainosus

G43.6

Persistent migraine aura with cerebral infarction

G43.60

Persistent migraine aura with cerebral infarction, not intractable

G43.601

Persistent migraine aura with cerebral infarction, not intractable, with status migrainosus

G43.609

Persistent migraine aura with cerebral infarction, not intractable, without status migrainosus

G43.61

Persistent migraine aura with cerebral infarction, intractable

G43.611

Persistent migraine aura with cerebral infarction, intractable, with status migrainosus

G43.619

Persistent migraine aura with cerebral infarction, intractable, without status migrainosus

G43.7

Chronic migraine without aura

G43.70

Chronic migraine without aura, not intractable

G43.701

Chronic migraine without aura, not intractable, with status migrainosus

G43.709

Chronic migraine without aura, not intractable, without status migrainosus

G43.71

Chronic migraine without aura, intractable

G43.711

Chronic migraine without aura, intractable, with status migrainosus

G43.719

Chronic migraine without aura, intractable, without status migrainosus

G43.8

Other migraine

G43.80

Other migraine, not intractable

G43.801

Other migraine, not intractable, with status migrainosus

G43.809

Other migraine, not intractable, without status migrainosus

G43.81

Other migraine, intractable

G43.811

Other migraine, intractable, with status migrainosus

G43.819

Other migraine, intractable, without status migrainosus

G43.82

Menstrual migraine, not intractable

G43.821

Menstrual migraine, not intractable, with status migrainosus

G43.829

Menstrual migraine, not intractable, without status migrainosus

G43.83

Menstrual migraine, intractable

G43.831

Menstrual migraine, intractable, with status migrainosus

G43.839

Menstrual migraine, intractable, without status migrainosus

G43.9

Migraine, unspecified

G43.90

Migraine, unspecified, not intractable

G43.901

Migraine, unspecified, not intractable, with status migrainosus

G43.909

Migraine, unspecified, not intractable, without status migrainosus

G43.91

Migraine, unspecified, intractable

G43.911

Migraine, unspecified, intractable, with status migrainosus

G43.919

Migraine, unspecified, intractable, without status migrainosus

G43.A

Cyclical vomiting

G43.A0

Cyclical vomiting, in migraine, not intractable

G43.A1

Cyclical vomiting, in migraine, intractable

G43.B

Ophthalmoplegic migraine

G43.B0

Ophthalmoplegic migraine, not intractable

G43.B1

Ophthalmoplegic migraine, intractable

G43.C

Periodic headache syndromes in child or adult

G43.C0

Periodic headache syndromes in child or adult, not intractable

G43.C1

Periodic headache syndromes in child or adult, intractable

G43.D

Abdominal migraine

G43.D0

Abdominal migraine, not intractable

G43.D1

Abdominal migraine, intractable

G43.E

Chronic migraine with aura

G43.E0

Chronic migraine with aura, not intractable

G43.E01

Chronic migraine with aura, not intractable, with status migrainosus

G43.E09

Chronic migraine with aura, not intractable, without status migrainosus

G43.E1

Chronic migraine with aura, intractable

G43.E11

Chronic migraine with aura, intractable, with status migrainosus

G43.E19

Chronic migraine with aura, intractable, without status migrainosus

G44

Other headache syndromes

G44.0

Cluster headaches and other trigeminal autonomic cephalgias (TAC)

G44.00

Cluster headache syndrome, unspecified

G44.001

Cluster headache syndrome, unspecified, intractable

G44.009

Cluster headache syndrome, unspecified, not intractable

G44.01

Episodic cluster headache

G44.011

Episodic cluster headache, intractable

G44.019

Episodic cluster headache, not intractable

G44.02

Chronic cluster headache

G44.021

Chronic cluster headache, intractable

G44.029

Chronic cluster headache, not intractable

G44.03

Episodic paroxysmal hemicrania

G44.031

Episodic paroxysmal hemicrania, intractable

G44.039

Episodic paroxysmal hemicrania, not intractable

G44.04

Chronic paroxysmal hemicrania

G44.041

Chronic paroxysmal hemicrania, intractable

G44.049

Chronic paroxysmal hemicrania, not intractable

G44.05

Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)

G44.051

Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), intractable

G44.059

Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractable

G44.09

Other trigeminal autonomic cephalgias (TAC)

G44.091

Other trigeminal autonomic cephalgias (TAC), intractable

G44.099

Other trigeminal autonomic cephalgias (TAC), not intractable

G44.1

Vascular headache, not elsewhere classified

G44.2

Tension-type headache

G44.20

Tension-type headache, unspecified

G44.201

Tension-type headache, unspecified, intractable

G44.209

Tension-type headache, unspecified, not intractable

G44.21

Episodic tension-type headache

G44.211

Episodic tension-type headache, intractable

G44.219

Episodic tension-type headache, not intractable

G44.22

Chronic tension-type headache

G44.221

Chronic tension-type headache, intractable

G44.229

Chronic tension-type headache, not intractable

G44.3

Post-traumatic headache

G44.30

Post-traumatic headache, unspecified

G44.301

Post-traumatic headache, unspecified, intractable

G44.309

Post-traumatic headache, unspecified, not intractable

G44.31

Acute post-traumatic headache

G44.311

Acute post-traumatic headache, intractable

G44.319

Acute post-traumatic headache, not intractable

G44.32

Chronic post-traumatic headache

G44.321

Chronic post-traumatic headache, intractable

G44.329

Chronic post-traumatic headache, not intractable

G44.4

Drug-induced headache, not elsewhere classified

G44.40

Drug-induced headache, not elsewhere classified, not intractable

G44.41

Drug-induced headache, not elsewhere classified, intractable

G44.5

Complicated headache syndromes

G44.51

Hemicrania continua

G44.52

New daily persistent headache (NDPH)

G44.53

Primary thunderclap headache

G44.59

Other complicated headache syndrome

G44.8

Other specified headache syndromes

G44.81

Hypnic headache

G44.82

Headache associated with sexual activity

G44.83

Primary cough headache

G44.84

Primary exertional headache

G44.85

Primary stabbing headache

G44.86

Cervicogenic headache

G44.89

Other headache syndrome

G45

Transient cerebral ischemic 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 ischemic attacks and related syndromes

G45.9

Transient cerebral ischemic attack, unspecified

G46

Vascular syndromes of brain in cerebrovascular diseases

G46.0

Middle cerebral artery syndrome

G46.1

Anterior cerebral artery syndrome

G46.2

Posterior cerebral artery syndrome

G46.3

Brain stem stroke syndrome

G46.4

Cerebellar stroke syndrome

G46.5

Pure motor lacunar syndrome

G46.6

Pure sensory lacunar syndrome

G46.7

Other lacunar syndromes

G46.8

Other vascular syndromes of brain in cerebrovascular diseases

G47

Sleep disorders

G47.0

Insomnia

G47.00

Insomnia, unspecified

G47.01

Insomnia due to medical condition

G47.09

Other insomnia

G47.1

Hypersomnia

G47.10

Hypersomnia, unspecified

G47.11

Idiopathic hypersomnia with long sleep time

G47.12

Idiopathic hypersomnia without long sleep time

G47.13

Recurrent hypersomnia

G47.14

Hypersomnia due to medical condition

G47.19

Other hypersomnia

G47.2

Circadian rhythm sleep disorders

G47.20

Circadian rhythm sleep disorder, unspecified type

G47.21

Circadian rhythm sleep disorder, delayed sleep phase type

G47.22

Circadian rhythm sleep disorder, advanced sleep phase type

G47.23

Circadian rhythm sleep disorder, irregular sleep wake type

G47.24

Circadian rhythm sleep disorder, free running type

G47.25

Circadian rhythm sleep disorder, jet lag type

G47.26

Circadian rhythm sleep disorder, shift work type

G47.27

Circadian rhythm sleep disorder in conditions classified elsewhere

G47.29

Other circadian rhythm sleep disorder

G47.3

Sleep apnea

G47.30

Sleep apnea, unspecified

G47.31

Primary central sleep apnea

G47.32

High altitude periodic breathing

G47.33

Obstructive sleep apnea (adult) (pediatric)

G47.34

Idiopathic sleep related nonobstructive alveolar hypoventilation

G47.35

Congenital central alveolar hypoventilation syndrome

G47.36

Sleep related hypoventilation in conditions classified elsewhere

G47.37

Central sleep apnea in conditions classified elsewhere

G47.39

Other sleep apnea

G47.4

Narcolepsy and cataplexy

G47.41

Narcolepsy

G47.411

Narcolepsy with cataplexy

G47.419

Narcolepsy without cataplexy

G47.42

Narcolepsy in conditions classified elsewhere

G47.421

Narcolepsy in conditions classified elsewhere with cataplexy

G47.429

Narcolepsy in conditions classified elsewhere without cataplexy

G47.5

Parasomnia

G47.50

Parasomnia, unspecified

G47.51

Confusional arousals

G47.52

REM sleep behavior disorder

G47.53

Recurrent isolated sleep paralysis

G47.54

Parasomnia in conditions classified elsewhere

G47.59

Other parasomnia

G47.6

Sleep related movement disorders

G47.61

Periodic limb movement disorder

G47.62

Sleep related leg cramps

G47.63

Sleep related bruxism

G47.69

Other sleep related movement disorders

G47.8

Other sleep disorders

G47.9

Sleep disorder, unspecified