Episodic and paroxysmal disorders (G40-G47)

Diseases of the nervous system
- Episodic and paroxysmal disorders (G40-G47)
  - - G40 - Epilepsy and recurrent seizures
    - G40.0 - Local-rel (focal) idio epilepsy w seizures of loc onset
    - G40.00 - Local-rel (focal) idio epi w seiz of loc onset, not ntrct
    - G40.001 - Local-rel idio epi w seiz of loc onst, not ntrct, w stat epi
    - G40.009 - Local-rel idio epi w seiz of loc onst,not ntrct,w/o stat epi
    - G40.01 - Local-rel (focal) idio epi w seizures of loc onset, ntrct
    - G40.011 - Local-rel idio epi w seiz of loc onset, ntrct, w stat epi
    - G40.019 - Local-rel idio epi w seiz of loc onset, ntrct, w/o stat epi
    - G40.1 - Local-rel (focal) symptc epilepsy w simple partial seizures
    - G40.10 - Local-rel symptc epi w simple partial seiz, not ntrct
    - G40.101 - Local-rel symptc epi w simp part seiz, not ntrct, w stat epi
    - G40.109 - Local-rel symptc epi w simp prt seiz,not ntrct, w/o stat epi
    - G40.11 - Local-rel (focal) symptc epi w simple partial seiz, ntrct
    - G40.111 - Local-rel symptc epi w simple part seiz, ntrct, w stat epi
    - G40.119 - Local-rel symptc epi w simple part seiz, ntrct, w/o stat epi
    - G40.2 - Local-rel (focal) symptc epilepsy w complex partial seizures
    - G40.20 - Local-rel symptc epi w complex partial seiz, not ntrct
    - G40.201 - Local-rel symptc epi w cmplx prt seiz, not ntrct, w stat epi
    - G40.209 - Local-rel symptc epi w cmplx prt seiz,not ntrct,w/o stat epi
    - G40.21 - Local-rel (focal) symptc epi w complex partial seiz, ntrct
    - G40.211 - Local-rel symptc epi w cmplx partial seiz, ntrct, w stat epi
    - G40.219 - Local-rel symptc epi w cmplx part seiz, ntrct, w/o stat epi
    - G40.3 - Generalized idiopathic epilepsy and epileptic syndromes
    - G40.30 - Generalized idiopathic epilepsy, not intractable
    - G40.301 - Gen idiopathic epilepsy, not intractable, w stat epi
    - G40.309 - Gen idiopathic epilepsy, not intractable, w/o stat epi
    - G40.31 - Generalized idiopathic epilepsy, intractable
    - G40.311 - Generalized idiopathic epilepsy, intractable, w stat epi
    - G40.319 - Generalized idiopathic epilepsy, intractable, w/o stat epi
    - G40.4 - Other generalized epilepsy and epileptic syndromes
    - G40.40 - Oth generalized epilepsy, not intractable
    - G40.401 - Oth generalized epilepsy, not intractable, w stat epi
    - G40.409 - Oth generalized epilepsy, not intractable, w/o stat epi
    - G40.41 - Oth generalized epilepsy, intractable
    - G40.411 - Oth generalized epilepsy, intractable, w status epilepticus
    - G40.419 - Oth generalized epilepsy, intractable, w/o stat epi
    - 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 ntrct
    - G40.501 - Epileptic seiz rel to extrn causes, not ntrct, w stat epi
    - G40.509 - Epileptic seiz rel to extrn causes, not ntrct, w/o stat epi
    - 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, w stat epi
    - G40.812 - Lennox-Gastaut syndrome, not intractable, w/o stat epi
    - G40.813 - Lennox-Gastaut syndrome, intractable, w status epilepticus
    - G40.814 - Lennox-Gastaut syndrome, intractable, w/o status epilepticus
    - G40.82 - Epileptic spasms
    - G40.821 - Epileptic spasms, not intractable, with status epilepticus
    - G40.822 - Epileptic spasms, not intractable, w/o 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
    - G40.89 - Other seizures
    - G40.9 - Epilepsy, unspecified
    - G40.90 - Epilepsy, unspecified, not intractable
    - G40.901 - Epilepsy, unsp, not intractable, with status epilepticus
    - G40.909 - Epilepsy, unsp, not intractable, without status epilepticus
    - G40.91 - Epilepsy, unspecified, intractable
    - G40.911 - Epilepsy, unspecified, intractable, with status epilepticus
    - G40.919 - Epilepsy, unsp, intractable, without status epilepticus
    - G40.A - Absence epileptic syndrome
    - G40.A0 - Absence epileptic syndrome, not intractable
    - G40.A01 - Absence epileptic syndrome, not intractable, w stat epi
    - G40.A09 - Absence epileptic syndrome, not intractable, w/o stat epi
    - G40.A1 - Absence epileptic syndrome, intractable
    - G40.A11 - Absence epileptic syndrome, intractable, w stat epi
    - G40.A19 - Absence epileptic syndrome, intractable, w/o stat epi
    - G40.B - Juvenile myoclonic epilepsy [impulsive petit mal]
    - G40.B0 - Juvenile myoclonic epilepsy, not intractable
    - G40.B01 - Juvenile myoclonic epilepsy, not intractable, w stat epi
    - G40.B09 - Juvenile myoclonic epilepsy, not intractable, w/o stat epi
    - G40.B1 - Juvenile myoclonic epilepsy, intractable
    - G40.B11 - Juvenile myoclonic epilepsy, intractable, w stat epi
    - G40.B19 - Juvenile myoclonic epilepsy, intractable, w/o stat epi
    - G40.C - Lafora progressive myoclonus epilepsy
    - G40.C0 - Lafora progressive myoclonus epilepsy, not intractable
    - G40.C01 - Lafora progr myoclonus epilepsy, not ntrct, with stat epi
    - G40.C09 - Lafora progr myoclonus epilepsy, not ntrct, without stat epi
    - G40.C1 - Lafora progressive myoclonus epilepsy, intractable
    - G40.C11 - Lafora progressive myoclonus epilepsy, ntrct, with stat epi
    - G40.C19 - Lafora progr myoclonus epilepsy, ntrct, without stat epi
  - - G43 - Migraine
    - G43.0 - Migraine without aura
    - G43.00 - Migraine without aura, not intractable
    - G43.001 - Migraine w/o aura, not intractable, with status migrainosus
    - G43.009 - Migraine w/o aura, not intractable, w/o status migrainosus
    - G43.01 - Migraine without aura, intractable
    - G43.011 - Migraine without aura, intractable, with status migrainosus
    - G43.019 - Migraine w/o 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, w/o 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, w status migrainosus
    - G43.409 - Hemiplegic migraine, not intractable, w/o 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 w/o cerebral infarction, not ntrct
    - G43.501 - Perst migraine aura w/o cereb infrc, not ntrct, w stat migr
    - G43.509 - Perst migrn aura w/o cereb infrc, not ntrct, w/o stat migr
    - G43.51 - Persistent migraine aura w/o cerebral infarction, ntrct
    - G43.511 - Perst migraine aura w/o cerebral infrc, ntrct, w stat migr
    - G43.519 - Perst migraine aura w/o cerebral infrc, ntrct, w/o stat migr
    - G43.6 - Persistent migraine aura with cerebral infarction
    - G43.60 - Persistent migraine aura w cerebral infarction, not ntrct
    - G43.601 - Perst migraine aura w cerebral infrc, not ntrct, w stat migr
    - G43.609 - Perst migraine aura w cereb infrc, not ntrct, w/o stat migr
    - G43.61 - Persistent migraine aura w cerebral infarction, intractable
    - G43.611 - Perst migraine aura w cerebral infrc, ntrct, w stat migr
    - G43.619 - Perst migraine aura w cerebral infrc, ntrct, w/o stat migr
    - G43.7 - Chronic migraine without aura
    - G43.70 - Chronic migraine without aura, not intractable
    - G43.701 - Chronic migraine w/o aura, not intractable, w stat migr
    - G43.709 - Chronic migraine w/o aura, not intractable, w/o stat migr
    - G43.71 - Chronic migraine without aura, intractable
    - G43.711 - Chronic migraine w/o aura, intractable, w status migrainosus
    - G43.719 - Chronic migraine w/o aura, intractable, w/o stat migr
    - 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, w/o 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, unsp, not intractable, with status migrainosus
    - G43.909 - Migraine, unsp, not intractable, without status migrainosus
    - G43.91 - Migraine, unspecified, intractable
    - G43.911 - Migraine, unspecified, intractable, with status migrainosus
    - G43.919 - Migraine, unsp, 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 chld/adlt, 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 stat migr
    - G43.E09 - Chronic migraine with aura, not ntrct, without stat migr
    - G43.E1 - Chronic migraine with aura, intractable
    - G43.E11 - Chronic migraine with aura, intractable, with stat migr
    - G43.E19 - Chronic migraine with aura, intractable, without stat migr
  - - G44 - Other headache syndromes
    - G44.0 - Cluster headaches and oth trigeminal autonm 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 - Shrt lst unil nerlgif headache w cnjnct inject/tear (SUNCT)
    - G44.051 - Shrt lst unil nerlgif hdache w cnjnct inject/tear, ntrct
    - G44.059 - Shrt lst unil nerlgif hdache w cnjnct inject/tear, not ntrct
    - 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, NEC, 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 - Oth transient cerebral ischemic attacks and related synd
    - 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 - Oth 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 classd elswhr
    - 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 - Idio sleep related nonobstructive alveolar hypoventilation
    - G47.35 - Congenital central alveolar hypoventilation syndrome
    - G47.36 - Sleep related hypoventilation in conditions classd elswhr
    - 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 w/o 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

Diseases of the nervous system