ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 6  /  G40-G47

Episodic and paroxysmal disorders (G40-G47)

G40 Epilepsy and recurrent seizures
Notes the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Excludes1 conversion disorder with seizures (F44.5)
convulsions NOS (R56.9)
post traumatic seizures (R56.1)
seizure (convulsive) NOS (R56.9)
seizure of newborn (P90)
Excludes2 hippocampal sclerosis (G93.81)
mesial temporal sclerosis (G93.81)
temporal sclerosis (G93.81)
Todd's paralysis (G83.84)
G40.0 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
Benign childhood epilepsy with centrotemporal EEG spikes
Childhood epilepsy with occipital EEG paroxysms
Excludes1 adult onset localization-related epilepsy (G40.1-, G40.2-)
G40.00 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable
Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset without intractability
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
Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset NOS
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
Attacks without alteration of consciousness
Epilepsia partialis continua [Kozhevnikof]
Simple partial seizures developing into secondarily generalized seizures
G40.10 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable
Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures without intractability
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
Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures NOS
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
Attacks with alteration of consciousness, often with automatisms
Complex partial seizures developing into secondarily generalized seizures
G40.20 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable
Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures without intractability
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
Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures NOS
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
CodeAlso MERRF syndrome, if applicable (E88.42)
G40.30 Generalized idiopathic epilepsy and epileptic syndromes, not intractable
Generalized idiopathic epilepsy and epileptic syndromes without intractability
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
Generalized idiopathic epilepsy and epileptic syndromes NOS
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.A Absence epileptic syndrome
Childhood absence epilepsy [pyknolepsy]
Juvenile absence epilepsy
Absence epileptic syndrome, NOS
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
Lafora body disease
CodeAlso , if applicable, associated conditions such as dementia (F02.8-)
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
Lafora progressive myoclonus epilepsy NOS
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
G40.4 Other generalized epilepsy and epileptic syndromes
Epilepsy with grand mal seizures on awakening
Epilepsy with myoclonic absences
Epilepsy with myoclonic-astatic seizures
Grand mal seizure NOS
Nonspecific atonic epileptic seizures
Nonspecific clonic epileptic seizures
Nonspecific myoclonic epileptic seizures
Nonspecific tonic epileptic seizures
Nonspecific tonic-clonic epileptic seizures
Symptomatic early myoclonic encephalopathy
G40.40 Other generalized epilepsy and epileptic syndromes, not intractable
Other generalized epilepsy and epileptic syndromes without intractability
Other generalized epilepsy and epileptic syndromes NOS
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
CDKL5
UseAdditionalCode code, if known, to identify associated manifestations, such as:
cortical blindness (H47.61-)
global developmental delay (F88)
G40.5 Epileptic seizures related to external causes
Epileptic seizures related to alcohol
Epileptic seizures related to drugs
Epileptic seizures related to hormonal changes
Epileptic seizures related to sleep deprivation
Epileptic seizures related to stress
CodeAlso , if applicable, associated epilepsy and recurrent seizures (G40.-)
UseAdditionalCode code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
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
Epileptic seizures related to external causes, NOS
G40.8 Other epilepsy and recurrent seizures
Epilepsies and epileptic syndromes undetermined as to whether they are focal or generalized
Landau-Kleffner syndrome
G40.80 Other epilepsy
G40.801 Other epilepsy, not intractable, with status epilepticus
Other epilepsy without intractability with status epilepticus
G40.802 Other epilepsy, not intractable, without status epilepticus
Other epilepsy NOS
Other epilepsy without intractability 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
Infantile spasms
Salaam attacks
West's syndrome
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
Polymorphic epilepsy in infancy (PMEI)
Severe myoclonic epilepsy in infancy (SMEI)
G40.833 Dravet syndrome, intractable, with status epilepticus
G40.834 Dravet syndrome, intractable, without status epilepticus
Dravet syndrome NOS
G40.89 Other seizures
Excludes1 post traumatic seizures (R56.1)
recurrent seizures NOS (G40.909)
seizure NOS (R56.9)
G40.9 Epilepsy, unspecified
G40.90 Epilepsy, unspecified, not intractable
Epilepsy, unspecified, without intractability
G40.901 Epilepsy, unspecified, not intractable, with status epilepticus
G40.909 Epilepsy, unspecified, not intractable, without status epilepticus
Epilepsy NOS
Epileptic convulsions NOS
Epileptic fits NOS
Epileptic seizures NOS
Recurrent seizures NOS
Seizure disorder NOS
G40.91 Epilepsy, unspecified, intractable
Intractable seizure disorder NOS
G40.911 Epilepsy, unspecified, intractable, with status epilepticus
G40.919 Epilepsy, unspecified, intractable, without status epilepticus
G43 Migraine
Notes the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
UseAdditionalCode code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Excludes1 headache NOS (R51.9)
lower half migraine (G44.00)
Excludes2 headache syndromes (G44.-)
G43.0 Migraine without aura
Common migraine
Excludes1 chronic migraine without aura (G43.7-)
G43.00 Migraine without aura, not intractable
Migraine without aura without mention of refractory migraine
G43.001 Migraine without aura, not intractable, with status migrainosus
G43.009 Migraine without aura, not intractable, without status migrainosus
Migraine without aura NOS
G43.01 Migraine without aura, intractable
Migraine without aura with refractory migraine
G43.011 Migraine without aura, intractable, with status migrainosus
G43.019 Migraine without aura, intractable, without status migrainosus
G43.1 Migraine with aura
Basilar migraine
Classical migraine
Migraine equivalents
Migraine preceded or accompanied by transient focal neurological phenomena
Migraine triggered seizures
Migraine with acute-onset aura
Migraine with aura without headache (migraine equivalents)
Migraine with prolonged aura
Migraine with typical aura
Retinal migraine
CodeAlso any associated seizure (G40.-, R56.9)
Excludes1 chronic migraine with aura (G43.E-)
persistent migraine aura (G43.5-, G43.6-)
G43.10 Migraine with aura, not intractable
Migraine with aura without mention of refractory migraine
G43.101 Migraine with aura, not intractable, with status migrainosus
G43.109 Migraine with aura, not intractable, without status migrainosus
Migraine with aura NOS
G43.11 Migraine with aura, intractable
Migraine with aura with refractory migraine
G43.111 Migraine with aura, intractable, with status migrainosus
G43.119 Migraine with aura, intractable, without status migrainosus
G43.4 Hemiplegic migraine
Familial migraine
Sporadic migraine
G43.40 Hemiplegic migraine, not intractable
Hemiplegic migraine without refractory migraine
G43.401 Hemiplegic migraine, not intractable, with status migrainosus
G43.409 Hemiplegic migraine, not intractable, without status migrainosus
Hemiplegic migraine NOS
G43.41 Hemiplegic migraine, intractable
Hemiplegic migraine with refractory migraine
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
Persistent migraine aura without cerebral infarction, without refractory migraine
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
Persistent migraine aura NOS
G43.51 Persistent migraine aura without cerebral infarction, intractable
Persistent migraine aura without cerebral infarction, with refractory migraine
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
CodeAlso the type of cerebral infarction (I63.-)
G43.60 Persistent migraine aura with cerebral infarction, not intractable
Persistent migraine aura with cerebral infarction, without refractory migraine
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
Persistent migraine aura with cerebral infarction, with refractory migraine
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
Transformed migraine
Excludes1 migraine without aura (G43.0-)
G43.70 Chronic migraine without aura, not intractable
Chronic migraine without aura, without refractory migraine
G43.701 Chronic migraine without aura, not intractable, with status migrainosus
G43.709 Chronic migraine without aura, not intractable, without status migrainosus
Chronic migraine without aura NOS
G43.71 Chronic migraine without aura, intractable
Chronic migraine without aura, with refractory migraine
G43.711 Chronic migraine without aura, intractable, with status migrainosus
G43.719 Chronic migraine without aura, intractable, without status migrainosus
G43.A Cyclical vomiting
Excludes1 cyclical vomiting syndrome unrelated to migraine (R11.15)
G43.A0 Cyclical vomiting, in migraine, not intractable
Cyclical vomiting, without refractory migraine
G43.A1 Cyclical vomiting, in migraine, intractable
Cyclical vomiting, with refractory migraine
G43.B Ophthalmoplegic migraine
G43.B0 Ophthalmoplegic migraine, not intractable
Ophthalmoplegic migraine, without refractory migraine
G43.B1 Ophthalmoplegic migraine, intractable
Ophthalmoplegic migraine, with refractory migraine
G43.C Periodic headache syndromes in child or adult
G43.C0 Periodic headache syndromes in child or adult, not intractable
Periodic headache syndromes in child or adult, without refractory migraine
G43.C1 Periodic headache syndromes in child or adult, intractable
Periodic headache syndromes in child or adult, with refractory migraine
G43.D Abdominal migraine
G43.D0 Abdominal migraine, not intractable
Abdominal migraine, without refractory migraine
G43.D1 Abdominal migraine, intractable
Abdominal migraine, with refractory migraine
G43.8 Other migraine
G43.80 Other migraine, not intractable
Other migraine, without refractory migraine
G43.801 Other migraine, not intractable, with status migrainosus
G43.809 Other migraine, not intractable, without status migrainosus
G43.81 Other migraine, intractable
Other migraine, with refractory migraine
G43.811 Other migraine, intractable, with status migrainosus
G43.819 Other migraine, intractable, without status migrainosus
G43.82 Menstrual migraine, not intractable
Menstrual headache, not intractable
Menstrual migraine, without refractory migraine
Menstrually related migraine, not intractable
Pre-menstrual headache, not intractable
Pre-menstrual migraine, not intractable
Pure menstrual migraine, not intractable
CodeAlso associated premenstrual tension syndrome (N94.3)
G43.821 Menstrual migraine, not intractable, with status migrainosus
sex Female
G43.829 Menstrual migraine, not intractable, without status migrainosus
Menstrual migraine NOS
sex Female
G43.83 Menstrual migraine, intractable
Menstrual headache, intractable
Menstrual migraine, with refractory migraine
Menstrually related migraine, intractable
Pre-menstrual headache, intractable
Pre-menstrual migraine, intractable
Pure menstrual migraine, intractable
CodeAlso associated premenstrual tension syndrome (N94.3)
G43.831 Menstrual migraine, intractable, with status migrainosus
sex Female
G43.839 Menstrual migraine, intractable, without status migrainosus
sex Female
G43.9 Migraine, unspecified
G43.90 Migraine, unspecified, not intractable
Migraine, unspecified, without refractory migraine
G43.901 Migraine, unspecified, not intractable, with status migrainosus
Status migrainosus NOS
G43.909 Migraine, unspecified, not intractable, without status migrainosus
Migraine NOS
G43.91 Migraine, unspecified, intractable
Migraine, unspecified, with refractory migraine
G43.911 Migraine, unspecified, intractable, with status migrainosus
G43.919 Migraine, unspecified, intractable, without status migrainosus
G43.E Chronic migraine with aura
Excludes1 migraine with aura (G43.1-)
G43.E0 Chronic migraine with aura, not intractable
Chronic migraine with aura, without refractory migraine
G43.E01 Chronic migraine with aura, not intractable, with status migrainosus
G43.E09 Chronic migraine with aura, not intractable, without status migrainosus
Chronic migraine with aura NOS
G43.E1 Chronic migraine with aura, intractable
Chronic migraine with aura, with refractory migraine
G43.E11 Chronic migraine with aura, intractable, with status migrainosus
G43.E19 Chronic migraine with aura, intractable, without status migrainosus
G44 Other headache syndromes
Excludes1 headache NOS (R51.9)
Excludes2 atypical facial pain (G50.1)
headache due to lumbar puncture (G97.1)
migraines (G43.-)
trigeminal neuralgia (G50.0)
G44.0 Cluster headaches and other trigeminal autonomic cephalgias (TAC)
G44.00 Cluster headache syndrome, unspecified
Ciliary neuralgia
Cluster headache NOS
Histamine cephalgia
Lower half migraine
Migrainous neuralgia
G44.001 Cluster headache syndrome, unspecified, intractable
G44.009 Cluster headache syndrome, unspecified, not intractable
Cluster headache syndrome NOS
G44.01 Episodic cluster headache
G44.011 Episodic cluster headache, intractable
G44.019 Episodic cluster headache, not intractable
Episodic cluster headache NOS
G44.02 Chronic cluster headache
G44.021 Chronic cluster headache, intractable
G44.029 Chronic cluster headache, not intractable
Chronic cluster headache NOS
G44.03 Episodic paroxysmal hemicrania
Paroxysmal hemicrania NOS
G44.031 Episodic paroxysmal hemicrania, intractable
G44.039 Episodic paroxysmal hemicrania, not intractable
Episodic paroxysmal hemicrania NOS
G44.04 Chronic paroxysmal hemicrania
G44.041 Chronic paroxysmal hemicrania, intractable
G44.049 Chronic paroxysmal hemicrania, not intractable
Chronic paroxysmal hemicrania NOS
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
Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) NOS
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
Excludes2 cluster headache (G44.0)
complicated headache syndromes (G44.5-)
drug-induced headache (G44.4-)
migraine (G43.-)
other specified headache syndromes (G44.8-)
post-traumatic headache (G44.3-)
tension-type headache (G44.2-)
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
Tension headache NOS
G44.21 Episodic tension-type headache
G44.211 Episodic tension-type headache, intractable
G44.219 Episodic tension-type headache, not intractable
Episodic tension-type headache NOS
G44.22 Chronic tension-type headache
G44.221 Chronic tension-type headache, intractable
G44.229 Chronic tension-type headache, not intractable
Chronic tension-type headache NOS
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
Post-traumatic headache NOS
G44.31 Acute post-traumatic headache
G44.311 Acute post-traumatic headache, intractable
G44.319 Acute post-traumatic headache, not intractable
Acute post-traumatic headache NOS
G44.32 Chronic post-traumatic headache
G44.321 Chronic post-traumatic headache, intractable
G44.329 Chronic post-traumatic headache, not intractable
Chronic post-traumatic headache NOS
G44.4 Drug-induced headache, not elsewhere classified
Medication overuse headache
UseAdditionalCode code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
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
Excludes2 headache with orthostatic or positional component, not elsewhere classified (R51.0)
G44.81 Hypnic headache
G44.82 Headache associated with sexual activity
Orgasmic headache
Preorgasmic headache
G44.83 Primary cough headache
G44.84 Primary exertional headache
G44.85 Primary stabbing headache
G44.86 Cervicogenic headache
CodeAlso associated cervical spinal condition, if known
G44.89 Other headache syndrome
G45 Transient cerebral ischemic attacks and related syndromes
Excludes1 neonatal cerebral ischemia (P91.0)
transient retinal artery occlusion (H34.0-)
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
Excludes1 amnesia NOS (R41.3)
G45.8 Other transient cerebral ischemic attacks and related syndromes
G45.9 Transient cerebral ischemic attack, unspecified
Spasm of cerebral artery
TIA
Transient cerebral ischemia NOS
G46 Vascular syndromes of brain in cerebrovascular diseases
CodeFirst underlying cerebrovascular disease (I60-I69)
G46.0 Middle cerebral artery syndrome
G46.1 Anterior cerebral artery syndrome
G46.2 Posterior cerebral artery syndrome
G46.3 Brain stem stroke syndrome
Benedikt syndrome
Claude syndrome
Foville syndrome
Millard-Gubler syndrome
Wallenberg syndrome
Weber 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
Excludes2 nightmares (F51.5)
nonorganic sleep disorders (F51.-)
sleep terrors (F51.4)
sleepwalking (F51.3)
G47.0 Insomnia
Excludes2 alcohol related insomnia (F10.182, F10.282, F10.982)
drug-related insomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
idiopathic insomnia (F51.01)
insomnia due to a mental disorder (F51.05)
insomnia not due to a substance or known physiological condition (F51.0-)
nonorganic insomnia (F51.0-)
primary insomnia (F51.01)
sleep apnea (G47.3-)
G47.00 Insomnia, unspecified
Insomnia NOS
G47.01 Insomnia due to medical condition
CodeAlso associated medical condition
G47.09 Other insomnia
G47.1 Hypersomnia
Excludes2 alcohol-related hypersomnia (F10.182, F10.282, F10.982)
drug-related hypersomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
hypersomnia due to a mental disorder (F51.13)
hypersomnia not due to a substance or known physiological condition (F51.1-)
primary hypersomnia (F51.11)
sleep apnea (G47.3-)
G47.10 Hypersomnia, unspecified
Hypersomnia NOS
G47.11 Idiopathic hypersomnia with long sleep time
Idiopathic hypersomnia NOS
G47.12 Idiopathic hypersomnia without long sleep time
G47.13 Recurrent hypersomnia
Kleine-Levin syndrome
Menstrual related hypersomnia
G47.14 Hypersomnia due to medical condition
CodeAlso associated medical condition
G47.19 Other hypersomnia
G47.2 Circadian rhythm sleep disorders
Disorders of the sleep wake schedule
Inversion of nyctohemeral rhythm
Inversion of sleep rhythm
G47.20 Circadian rhythm sleep disorder, unspecified type
Sleep wake schedule disorder NOS
G47.21 Circadian rhythm sleep disorder, delayed sleep phase type
Delayed sleep phase syndrome
G47.22 Circadian rhythm sleep disorder, advanced sleep phase type
G47.23 Circadian rhythm sleep disorder, irregular sleep wake type
Irregular sleep-wake pattern
G47.24 Circadian rhythm sleep disorder, free running type
Circadian rhythm sleep disorder, non-24-hour sleep-wake 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
CodeFirst underlying condition
nonPrimary Yes
G47.29 Other circadian rhythm sleep disorder
G47.3 Sleep apnea
CodeAlso any associated underlying condition
Excludes1 apnea NOS (R06.81)
Cheyne-Stokes breathing (R06.3)
pickwickian syndrome (E66.2)
sleep apnea of newborn (P28.3-)
G47.30 Sleep apnea, unspecified
Sleep apnea NOS
G47.31 Primary central sleep apnea
Idiopathic central sleep apnea
G47.32 High altitude periodic breathing
G47.33 Obstructive sleep apnea (adult) (pediatric)
Obstructive sleep apnea hypopnea
Excludes1 obstructive sleep apnea of newborn (P28.3-)
G47.34 Idiopathic sleep related nonobstructive alveolar hypoventilation
Sleep related hypoxia
G47.35 Congenital central alveolar hypoventilation syndrome
G47.36 Sleep related hypoventilation in conditions classified elsewhere
Sleep related hypoxemia in conditions classified elsewhere
CodeFirst underlying condition
nonPrimary Yes
G47.37 Central sleep apnea in conditions classified elsewhere
CodeFirst underlying condition
nonPrimary Yes
G47.39 Other sleep apnea
G47.4 Narcolepsy and cataplexy
G47.41 Narcolepsy
G47.411 Narcolepsy with cataplexy
G47.419 Narcolepsy without cataplexy
Narcolepsy NOS
G47.42 Narcolepsy in conditions classified elsewhere
CodeFirst underlying condition
G47.421 Narcolepsy in conditions classified elsewhere with cataplexy
nonPrimary Yes
G47.429 Narcolepsy in conditions classified elsewhere without cataplexy
nonPrimary Yes
G47.5 Parasomnia
Excludes1 alcohol induced parasomnia (F10.182, F10.282, F10.982)
drug induced parasomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
parasomnia not due to a substance or known physiological condition (F51.8)
G47.50 Parasomnia, unspecified
Parasomnia NOS
G47.51 Confusional arousals
G47.52 REM sleep behavior disorder
G47.53 Recurrent isolated sleep paralysis
G47.54 Parasomnia in conditions classified elsewhere
CodeFirst underlying condition
nonPrimary Yes
G47.59 Other parasomnia
G47.6 Sleep related movement disorders
Excludes2 restless legs syndrome (G25.81)
G47.61 Periodic limb movement disorder
G47.62 Sleep related leg cramps
G47.63 Sleep related bruxism
Excludes1 psychogenic bruxism (F45.8)
G47.69 Other sleep related movement disorders
G47.8 Other sleep disorders
Other specified sleep-wake disorder
G47.9 Sleep disorder, unspecified
Sleep disorder NOS
Unspecified sleep-wake disorder