Episodic and paroxysmal disorders (G40-G47)
G40Epilepsy and recurrent seizures
the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
G40.0Localization-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
Excludes 1: adult onset localization-related epilepsy (G40.1-, G40.2-)
G40.00Localization-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
G40.001Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, with status epilepticus
G40.009Localization-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
G40.01Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable
G40.011Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, with status epilepticus
G40.019Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, without status epilepticus
G40.1Localization-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
G40.10Localization-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
G40.101Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, with status epilepticus
G40.109Localization-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
G40.11Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable
G40.111Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, with status epilepticus
G40.119Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, without status epilepticus
G40.2Localization-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
G40.20Localization-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
G40.201Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, with status epilepticus
G40.209Localization-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
G40.21Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable
G40.211Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus
G40.219Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus
G40.3Generalized idiopathic epilepsy and epileptic syndromes
Code Also: MERRF syndrome, if applicable (E88.42)
G40.30Generalized idiopathic epilepsy and epileptic syndromes, not intractable
› Generalized idiopathic epilepsy and epileptic syndromes without intractability
G40.301Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus
G40.309Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
› Generalized idiopathic epilepsy and epileptic syndromes NOS
G40.31Generalized idiopathic epilepsy and epileptic syndromes, intractable
G40.311Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticus
G40.319Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus
G40.AAbsence epileptic syndrome
› Childhood absence epilepsy [pyknolepsy]
› Juvenile absence epilepsy
› Absence epileptic syndrome, NOS
G40.A0Absence epileptic syndrome, not intractable
G40.A01Absence epileptic syndrome, not intractable, with status epilepticus
G40.A09Absence epileptic syndrome, not intractable, without status epilepticus
G40.A1Absence epileptic syndrome, intractable
G40.A11Absence epileptic syndrome, intractable, with status epilepticus
G40.A19Absence epileptic syndrome, intractable, without status epilepticus
G40.BJuvenile myoclonic epilepsy [impulsive petit mal]
G40.B0Juvenile myoclonic epilepsy, not intractable
G40.B01Juvenile myoclonic epilepsy, not intractable, with status epilepticus
G40.B09Juvenile myoclonic epilepsy, not intractable, without status epilepticus
G40.B1Juvenile myoclonic epilepsy, intractable
G40.B11Juvenile myoclonic epilepsy, intractable, with status epilepticus
G40.B19Juvenile myoclonic epilepsy, intractable, without status epilepticus
G40.CLafora progressive myoclonus epilepsy
› Lafora body disease
Code Also: , if applicable, associated conditions such as dementia (F02.8-)
G40.C0Lafora progressive myoclonus epilepsy, not intractable
G40.C01Lafora progressive myoclonus epilepsy, not intractable, with status epilepticus
G40.C09Lafora progressive myoclonus epilepsy, not intractable, without status epilepticus
› Lafora progressive myoclonus epilepsy NOS
G40.C1Lafora progressive myoclonus epilepsy, intractable
G40.C11Lafora progressive myoclonus epilepsy, intractable, with status epilepticus
G40.C19Lafora progressive myoclonus epilepsy, intractable, without status epilepticus
G40.4Other 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
G40.40Other generalized epilepsy and epileptic syndromes, not intractable
› Other generalized epilepsy and epileptic syndromes without intractability
› Other generalized epilepsy and epileptic syndromes NOS
G40.401Other generalized epilepsy and epileptic syndromes, not intractable, with status epilepticus
G40.409Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus
G40.41Other generalized epilepsy and epileptic syndromes, intractable
G40.411Other generalized epilepsy and epileptic syndromes, intractable, with status epilepticus
G40.419Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus
G40.42Cyclin-Dependent Kinase-Like 5 Deficiency Disorder
› CDKL5
Use Additional Code: code, if known, to identify associated manifestations, such as:
› cortical blindness (H47.61-)
› global developmental delay (F88)
G40.5Epileptic 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
Code Also: , if applicable, associated epilepsy and recurrent seizures (G40.-)
Use Additional Code: code for adverse effect, if applicable, to identify drug (T36-T50) with fifth or sixth character 5)
G40.50Epileptic seizures related to external causes, not intractable
G40.501Epileptic seizures related to external causes, not intractable, with status epilepticus
G40.509Epileptic seizures related to external causes, not intractable, without status epilepticus
› Epileptic seizures related to external causes, NOS
G40.8Other epilepsy and recurrent seizures
› Epilepsies and epileptic syndromes undetermined as to whether they are focal or generalized
› Landau-Kleffner syndrome
G40.80Other epilepsy
G40.801Other epilepsy, not intractable, with status epilepticus
› Other epilepsy without intractability with status epilepticus
G40.802Other epilepsy, not intractable, without status epilepticus
› Other epilepsy NOS
› Other epilepsy without intractability without status epilepticus
G40.803Other epilepsy, intractable, with status epilepticus
G40.804Other epilepsy, intractable, without status epilepticus
G40.81Lennox-Gastaut syndrome
G40.811Lennox-Gastaut syndrome, not intractable, with status epilepticus
G40.812Lennox-Gastaut syndrome, not intractable, without status epilepticus
G40.813Lennox-Gastaut syndrome, intractable, with status epilepticus
G40.814Lennox-Gastaut syndrome, intractable, without status epilepticus
G40.82Epileptic spasms
› Infantile spasms
› Salaam attacks
› West's syndrome
G40.821Epileptic spasms, not intractable, with status epilepticus
G40.822Epileptic spasms, not intractable, without status epilepticus
G40.823Epileptic spasms, intractable, with status epilepticus
G40.824Epileptic spasms, intractable, without status epilepticus
G40.83Dravet syndrome
› Polymorphic epilepsy in infancy (PMEI)
› Severe myoclonic epilepsy in infancy (SMEI)
G40.833Dravet syndrome, intractable, with status epilepticus
G40.834Dravet syndrome, intractable, without status epilepticus
› Dravet syndrome NOS
G40.89Other seizures
Excludes 1: post traumatic seizures (R56.1)
› recurrent seizures NOS (G40.909)
› seizure NOS (R56.9)
G40.9Epilepsy, unspecified
G40.90Epilepsy, unspecified, not intractable
› Epilepsy, unspecified, without intractability
G40.901Epilepsy, unspecified, not intractable, with status epilepticus
G40.909Epilepsy, unspecified, not intractable, without status epilepticus
› Epilepsy NOS
› Epileptic convulsions NOS
› Epileptic fits NOS
› Epileptic seizures NOS
› Recurrent seizures NOS
› Seizure disorder NOS
G40.91Epilepsy, unspecified, intractable
› Intractable seizure disorder NOS
G40.911Epilepsy, unspecified, intractable, with status epilepticus
G40.919Epilepsy, unspecified, intractable, without status epilepticus
G43Migraine
the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
G43.0Migraine without aura
› Common migraine
Excludes 1: chronic migraine without aura (G43.7-)
G43.00Migraine without aura, not intractable
› Migraine without aura without mention of refractory migraine
G43.001Migraine without aura, not intractable, with status migrainosus
G43.009Migraine without aura, not intractable, without status migrainosus
› Migraine without aura NOS
G43.01Migraine without aura, intractable
› Migraine without aura with refractory migraine
G43.011Migraine without aura, intractable, with status migrainosus
G43.019Migraine without aura, intractable, without status migrainosus
G43.1Migraine 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
Code Also: any associated seizure (G40.-, R56.9)
Excludes 1: chronic migraine with aura (G43.E-)
› persistent migraine aura (G43.5-, G43.6-)
G43.10Migraine with aura, not intractable
› Migraine with aura without mention of refractory migraine
G43.101Migraine with aura, not intractable, with status migrainosus
G43.109Migraine with aura, not intractable, without status migrainosus
› Migraine with aura NOS
G43.11Migraine with aura, intractable
› Migraine with aura with refractory migraine
G43.111Migraine with aura, intractable, with status migrainosus
G43.119Migraine with aura, intractable, without status migrainosus
G43.4Hemiplegic migraine
› Familial migraine
› Sporadic migraine
G43.40Hemiplegic migraine, not intractable
› Hemiplegic migraine without refractory migraine
G43.401Hemiplegic migraine, not intractable, with status migrainosus
G43.409Hemiplegic migraine, not intractable, without status migrainosus
› Hemiplegic migraine NOS
G43.41Hemiplegic migraine, intractable
› Hemiplegic migraine with refractory migraine
G43.411Hemiplegic migraine, intractable, with status migrainosus
G43.419Hemiplegic migraine, intractable, without status migrainosus
G43.5Persistent migraine aura without cerebral infarction
G43.50Persistent migraine aura without cerebral infarction, not intractable
› Persistent migraine aura without cerebral infarction, without refractory migraine
G43.501Persistent migraine aura without cerebral infarction, not intractable, with status migrainosus
G43.509Persistent migraine aura without cerebral infarction, not intractable, without status migrainosus
› Persistent migraine aura NOS
G43.51Persistent migraine aura without cerebral infarction, intractable
› Persistent migraine aura without cerebral infarction, with refractory migraine
G43.511Persistent migraine aura without cerebral infarction, intractable, with status migrainosus
G43.519Persistent migraine aura without cerebral infarction, intractable, without status migrainosus
G43.6Persistent migraine aura with cerebral infarction
Code Also: the type of cerebral infarction (I63.-)
G43.60Persistent migraine aura with cerebral infarction, not intractable
› Persistent migraine aura with cerebral infarction, without refractory migraine
G43.601Persistent migraine aura with cerebral infarction, not intractable, with status migrainosus
G43.609Persistent migraine aura with cerebral infarction, not intractable, without status migrainosus
G43.61Persistent migraine aura with cerebral infarction, intractable
› Persistent migraine aura with cerebral infarction, with refractory migraine
G43.611Persistent migraine aura with cerebral infarction, intractable, with status migrainosus
G43.619Persistent migraine aura with cerebral infarction, intractable, without status migrainosus
G43.7Chronic migraine without aura
› Transformed migraine
Excludes 1: migraine without aura (G43.0-)
G43.70Chronic migraine without aura, not intractable
› Chronic migraine without aura, without refractory migraine
G43.701Chronic migraine without aura, not intractable, with status migrainosus
G43.709Chronic migraine without aura, not intractable, without status migrainosus
› Chronic migraine without aura NOS
G43.71Chronic migraine without aura, intractable
› Chronic migraine without aura, with refractory migraine
G43.711Chronic migraine without aura, intractable, with status migrainosus
G43.719Chronic migraine without aura, intractable, without status migrainosus
G43.ACyclical vomiting
Excludes 1: cyclical vomiting syndrome unrelated to migraine (R11.15)
G43.A0Cyclical vomiting, in migraine, not intractable
› Cyclical vomiting, without refractory migraine
G43.A1Cyclical vomiting, in migraine, intractable
› Cyclical vomiting, with refractory migraine
G43.BOphthalmoplegic migraine
G43.B0Ophthalmoplegic migraine, not intractable
› Ophthalmoplegic migraine, without refractory migraine
G43.B1Ophthalmoplegic migraine, intractable
› Ophthalmoplegic migraine, with refractory migraine
G43.CPeriodic headache syndromes in child or adult
G43.C0Periodic headache syndromes in child or adult, not intractable
› Periodic headache syndromes in child or adult, without refractory migraine
G43.C1Periodic headache syndromes in child or adult, intractable
› Periodic headache syndromes in child or adult, with refractory migraine
G43.DAbdominal migraine
G43.D0Abdominal migraine, not intractable
› Abdominal migraine, without refractory migraine
G43.D1Abdominal migraine, intractable
› Abdominal migraine, with refractory migraine
G43.8Other migraine
G43.80Other migraine, not intractable
› Other migraine, without refractory migraine
G43.801Other migraine, not intractable, with status migrainosus
G43.809Other migraine, not intractable, without status migrainosus
G43.81Other migraine, intractable
› Other migraine, with refractory migraine
G43.811Other migraine, intractable, with status migrainosus
G43.819Other migraine, intractable, without status migrainosus
G43.82Menstrual 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
Code Also: associated premenstrual tension syndrome (N94.3)
G43.821Menstrual migraine, not intractable, with status migrainosus
G43.829Menstrual migraine, not intractable, without status migrainosus
› Menstrual migraine NOS
G43.83Menstrual 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
Code Also: associated premenstrual tension syndrome (N94.3)
G43.831Menstrual migraine, intractable, with status migrainosus
G43.839Menstrual migraine, intractable, without status migrainosus
G43.9Migraine, unspecified
G43.90Migraine, unspecified, not intractable
› Migraine, unspecified, without refractory migraine
G43.901Migraine, unspecified, not intractable, with status migrainosus
› Status migrainosus NOS
G43.909Migraine, unspecified, not intractable, without status migrainosus
› Migraine NOS
G43.91Migraine, unspecified, intractable
› Migraine, unspecified, with refractory migraine
G43.911Migraine, unspecified, intractable, with status migrainosus
G43.919Migraine, unspecified, intractable, without status migrainosus
G43.EChronic migraine with aura
Excludes 1: migraine with aura (G43.1-)
G43.E0Chronic migraine with aura, not intractable
› Chronic migraine with aura, without refractory migraine
G43.E01Chronic migraine with aura, not intractable, with status migrainosus
G43.E09Chronic migraine with aura, not intractable, without status migrainosus
› Chronic migraine with aura NOS
G43.E1Chronic migraine with aura, intractable
› Chronic migraine with aura, with refractory migraine
G43.E11Chronic migraine with aura, intractable, with status migrainosus
G43.E19Chronic migraine with aura, intractable, without status migrainosus
G44Other headache syndromes
Excludes 1: headache NOS (R51.9)
Excludes 2: atypical facial pain (G50.1)
› headache due to lumbar puncture (G97.1)
› migraines (G43.-)
› trigeminal neuralgia (G50.0)
G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)
G44.00Cluster headache syndrome, unspecified
› Ciliary neuralgia
› Cluster headache NOS
› Histamine cephalgia
› Lower half migraine
› Migrainous neuralgia
G44.001Cluster headache syndrome, unspecified, intractable
G44.009Cluster headache syndrome, unspecified, not intractable
› Cluster headache syndrome NOS
G44.01Episodic cluster headache
G44.011Episodic cluster headache, intractable
G44.019Episodic cluster headache, not intractable
› Episodic cluster headache NOS
G44.02Chronic cluster headache
G44.021Chronic cluster headache, intractable
G44.029Chronic cluster headache, not intractable
› Chronic cluster headache NOS
G44.03Episodic paroxysmal hemicrania
› Paroxysmal hemicrania NOS
G44.031Episodic paroxysmal hemicrania, intractable
G44.039Episodic paroxysmal hemicrania, not intractable
› Episodic paroxysmal hemicrania NOS
G44.04Chronic paroxysmal hemicrania
G44.041Chronic paroxysmal hemicrania, intractable
G44.049Chronic paroxysmal hemicrania, not intractable
› Chronic paroxysmal hemicrania NOS
G44.05Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)
G44.051Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), intractable
G44.059Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractable
› Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) NOS
G44.09Other trigeminal autonomic cephalgias (TAC)
G44.091Other trigeminal autonomic cephalgias (TAC), intractable
G44.099Other trigeminal autonomic cephalgias (TAC), not intractable
G44.1Vascular headache, not elsewhere classified
Excludes 2: 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-)
G44.2Tension-type headache
G44.20Tension-type headache, unspecified
G44.201Tension-type headache, unspecified, intractable
G44.209Tension-type headache, unspecified, not intractable
› Tension headache NOS
G44.21Episodic tension-type headache
G44.211Episodic tension-type headache, intractable
G44.219Episodic tension-type headache, not intractable
› Episodic tension-type headache NOS
G44.22Chronic tension-type headache
G44.221Chronic tension-type headache, intractable
G44.229Chronic tension-type headache, not intractable
› Chronic tension-type headache NOS
G44.3Post-traumatic headache
G44.30Post-traumatic headache, unspecified
G44.301Post-traumatic headache, unspecified, intractable
G44.309Post-traumatic headache, unspecified, not intractable
› Post-traumatic headache NOS
G44.31Acute post-traumatic headache
G44.311Acute post-traumatic headache, intractable
G44.319Acute post-traumatic headache, not intractable
› Acute post-traumatic headache NOS
G44.32Chronic post-traumatic headache
G44.321Chronic post-traumatic headache, intractable
G44.329Chronic post-traumatic headache, not intractable
› Chronic post-traumatic headache NOS
G44.4Drug-induced headache, not elsewhere classified
› Medication overuse headache
Use Additional Code: code for adverse effect, if applicable, to identify drug (T36-T50) with fifth or sixth character 5)
G44.40Drug-induced headache, not elsewhere classified, not intractable
G44.41Drug-induced headache, not elsewhere classified, intractable
G44.5Complicated headache syndromes
G44.51Hemicrania continua
G44.52New daily persistent headache (NDPH)
G44.53Primary thunderclap headache
G44.59Other complicated headache syndrome
G44.8Other specified headache syndromes
Excludes 2: headache with orthostatic or positional component, not elsewhere classified (R51.0)
G44.81Hypnic headache
G44.82Headache associated with sexual activity
› Orgasmic headache
› Preorgasmic headache
G44.83Primary cough headache
G44.84Primary exertional headache
G44.85Primary stabbing headache
G44.86Cervicogenic headache
Code Also: associated cervical spinal condition, if known
G44.89Other headache syndrome
G45Transient cerebral ischemic attacks and related syndromes
Excludes 1: neonatal cerebral ischemia (P91.0)
› transient retinal artery occlusion (H34.0-)
G45.0Vertebro-basilar artery syndrome
G45.1Carotid artery syndrome (hemispheric)
G45.2Multiple and bilateral precerebral artery syndromes
G45.3Amaurosis fugax
G45.4Transient global amnesia
Excludes 1: amnesia NOS (R41.3)
G45.8Other transient cerebral ischemic attacks and related syndromes
G45.9Transient cerebral ischemic attack, unspecified
› Spasm of cerebral artery
› TIA
› Transient cerebral ischemia NOS
G46Vascular syndromes of brain in cerebrovascular diseases
Code First: underlying cerebrovascular disease (I60-I69)
G46.0Middle cerebral artery syndrome
G46.1Anterior cerebral artery syndrome
G46.2Posterior cerebral artery syndrome
G46.3Brain stem stroke syndrome
› Benedikt syndrome
› Claude syndrome
› Foville syndrome
› Millard-Gubler syndrome
› Wallenberg syndrome
› Weber syndrome
G46.4Cerebellar stroke syndrome
G46.5Pure motor lacunar syndrome
G46.6Pure sensory lacunar syndrome
G46.7Other lacunar syndromes
G46.8Other vascular syndromes of brain in cerebrovascular diseases
G47Sleep disorders
Excludes 2: nightmares (F51.5)
› nonorganic sleep disorders (F51.-)
› sleep terrors (F51.4)
› sleepwalking (F51.3)
G47.0Insomnia
Excludes 2: 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-)
G47.00Insomnia, unspecified
› Insomnia NOS
G47.01Insomnia due to medical condition
Code Also: associated medical condition
G47.09Other insomnia
G47.1Hypersomnia
Excludes 2: 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-)
G47.10Hypersomnia, unspecified
› Hypersomnia NOS
G47.11Idiopathic hypersomnia with long sleep time
› Idiopathic hypersomnia NOS
G47.12Idiopathic hypersomnia without long sleep time
G47.13Recurrent hypersomnia
› Kleine-Levin syndrome
› Menstrual related hypersomnia
G47.14Hypersomnia due to medical condition
Code Also: associated medical condition
G47.19Other hypersomnia
G47.2Circadian rhythm sleep disorders
› Disorders of the sleep wake schedule
› Inversion of nyctohemeral rhythm
› Inversion of sleep rhythm
G47.20Circadian rhythm sleep disorder, unspecified type
› Sleep wake schedule disorder NOS
G47.21Circadian rhythm sleep disorder, delayed sleep phase type
› Delayed sleep phase syndrome
G47.22Circadian rhythm sleep disorder, advanced sleep phase type
G47.23Circadian rhythm sleep disorder, irregular sleep wake type
› Irregular sleep-wake pattern
G47.24Circadian rhythm sleep disorder, free running type
› Circadian rhythm sleep disorder, non-24-hour sleep-wake type
G47.25Circadian rhythm sleep disorder, jet lag type
G47.26Circadian rhythm sleep disorder, shift work type
G47.27Circadian rhythm sleep disorder in conditions classified elsewhere
Code First: underlying condition
G47.29Other circadian rhythm sleep disorder
G47.3Sleep apnea
Code Also: any associated underlying condition
Excludes 1: apnea NOS (R06.81)
› Cheyne-Stokes breathing (R06.3)
› pickwickian syndrome (E66.2)
› sleep apnea of newborn (P28.3-)
G47.30Sleep apnea, unspecified
› Sleep apnea NOS
G47.31Primary central sleep apnea
› Idiopathic central sleep apnea
G47.32High altitude periodic breathing
G47.33Obstructive sleep apnea (adult) (pediatric)
› Obstructive sleep apnea hypopnea
Excludes 1: obstructive sleep apnea of newborn (P28.3-)
G47.34Idiopathic sleep related nonobstructive alveolar hypoventilation
› Sleep related hypoxia
G47.35Congenital central alveolar hypoventilation syndrome
G47.36Sleep related hypoventilation in conditions classified elsewhere
› Sleep related hypoxemia in conditions classified elsewhere
Code First: underlying condition
G47.37Central sleep apnea in conditions classified elsewhere
Code First: underlying condition
G47.39Other sleep apnea
G47.4Narcolepsy and cataplexy
G47.41Narcolepsy
G47.411Narcolepsy with cataplexy
G47.419Narcolepsy without cataplexy
› Narcolepsy NOS
G47.42Narcolepsy in conditions classified elsewhere
Code First: underlying condition
G47.421Narcolepsy in conditions classified elsewhere with cataplexy
G47.429Narcolepsy in conditions classified elsewhere without cataplexy
G47.5Parasomnia
Excludes 1: 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)
G47.50Parasomnia, unspecified
› Parasomnia NOS
G47.51Confusional arousals
G47.52REM sleep behavior disorder
G47.53Recurrent isolated sleep paralysis
G47.54Parasomnia in conditions classified elsewhere
Code First: underlying condition
G47.59Other parasomnia
G47.6Sleep related movement disorders
Excludes 2: restless legs syndrome (G25.81)
G47.61Periodic limb movement disorder
G47.62Sleep related leg cramps
G47.63Sleep related bruxism
Excludes 1: psychogenic bruxism (F45.8)
G47.69Other sleep related movement disorders
G47.8Other sleep disorders
› Other specified sleep-wake disorder
G47.9Sleep disorder, unspecified
› Sleep disorder NOS
› Unspecified sleep-wake disorder