Chapter 6 · G00–G99 · 932 codes
Diseases of the nervous system
Every ICD-10-CM 2026 code in this chapter, grouped by 3-character category. Click any code for its full description and coding context.
G00
G01
G02
G03
G04
- G04Encephalitis, myelitis and encephalomyelitis
- G04.0Acute disseminated encephalitis and encephalomyelitis (ADEM)
- G04.00Acute disseminated encephalitis and encephalomyelitis, unspecified
- G04.01Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
- G04.02Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis
- G04.1Tropical spastic paraplegia
- G04.2Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified
- G04.3Acute necrotizing hemorrhagic encephalopathy
- G04.30Acute necrotizing hemorrhagic encephalopathy, unspecified
- G04.31Postinfectious acute necrotizing hemorrhagic encephalopathy
- G04.32Postimmunization acute necrotizing hemorrhagic encephalopathy
- G04.39Other acute necrotizing hemorrhagic encephalopathy
- G04.8Other encephalitis, myelitis and encephalomyelitis
- G04.81Other encephalitis and encephalomyelitis
- G04.82Acute flaccid myelitis
- G04.89Other myelitis
- G04.9Encephalitis, myelitis and encephalomyelitis, unspecified
- G04.90Encephalitis and encephalomyelitis, unspecified
- G04.91Myelitis, unspecified
G05
G06
G07
G08
G09
G10
G11
- G11Hereditary ataxia
- G11.0Congenital nonprogressive ataxia
- G11.1Early-onset cerebellar ataxia
- G11.10Early-onset cerebellar ataxia, unspecified
- G11.11Friedreich ataxia
- G11.19Other early-onset cerebellar ataxia
- G11.2Late-onset cerebellar ataxia
- G11.3Cerebellar ataxia with defective DNA repair
- G11.4Hereditary spastic paraplegia
- G11.5Hypomyelination - hypogonadotropic hypogonadism - hypodontia
- G11.6Leukodystrophy with vanishing white matter disease
- G11.8Other hereditary ataxias
- G11.9Hereditary ataxia, unspecified
G12
- G12Spinal muscular atrophy and related syndromes
- G12.0Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
- G12.1Other inherited spinal muscular atrophy
- G12.2Motor neuron disease
- G12.20Motor neuron disease, unspecified
- G12.21Amyotrophic lateral sclerosis
- G12.22Progressive bulbar palsy
- G12.23Primary lateral sclerosis
- G12.24Familial motor neuron disease
- G12.25Progressive spinal muscle atrophy
- G12.29Other motor neuron disease
- G12.8Other spinal muscular atrophies and related syndromes
- G12.9Spinal muscular atrophy, unspecified
G13
- G13Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
- G13.0Paraneoplastic neuromyopathy and neuropathy
- G13.1Other systemic atrophy primarily affecting central nervous system in neoplastic disease
- G13.2Systemic atrophy primarily affecting the central nervous system in myxedema
- G13.8Systemic atrophy primarily affecting central nervous system in other diseases classified elsewhere
G14
G20
- G20Parkinson's disease
- G20.AParkinson's disease without dyskinesia
- G20.A1Parkinson's disease without dyskinesia, without mention of fluctuations
- G20.A2Parkinson's disease without dyskinesia, with fluctuations
- G20.BParkinson's disease with dyskinesia
- G20.B1Parkinson's disease with dyskinesia, without mention of fluctuations
- G20.B2Parkinson's disease with dyskinesia, with fluctuations
- G20.CParkinsonism, unspecified
G21
- G21Secondary parkinsonism
- G21.0Malignant neuroleptic syndrome
- G21.1Other drug-induced secondary parkinsonism
- G21.11Neuroleptic induced parkinsonism
- G21.19Other drug induced secondary parkinsonism
- G21.2Secondary parkinsonism due to other external agents
- G21.3Postencephalitic parkinsonism
- G21.4Vascular parkinsonism
- G21.8Other secondary parkinsonism
- G21.9Secondary parkinsonism, unspecified
G23
- G23Other degenerative diseases of basal ganglia
- G23.0Hallervorden-Spatz disease
- G23.1Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
- G23.2Striatonigral degeneration
- G23.3Hypomyelination with atrophy of the basal ganglia and cerebellum
- G23.8Other specified degenerative diseases of basal ganglia
- G23.9Degenerative disease of basal ganglia, unspecified
G24
- G24Dystonia
- G24.0Drug induced dystonia
- G24.01Drug induced subacute dyskinesia
- G24.02Drug induced acute dystonia
- G24.09Other drug induced dystonia
- G24.1Genetic torsion dystonia
- G24.2Idiopathic nonfamilial dystonia
- G24.3Spasmodic torticollis
- G24.4Idiopathic orofacial dystonia
- G24.5Blepharospasm
- G24.8Other dystonia
- G24.9Dystonia, unspecified
G25
- G25Other extrapyramidal and movement disorders
- G25.0Essential tremor
- G25.1Drug-induced tremor
- G25.2Other specified forms of tremor
- G25.3Myoclonus
- G25.4Drug-induced chorea
- G25.5Other chorea
- G25.6Drug induced tics and other tics of organic origin
- G25.61Drug induced tics
- G25.69Other tics of organic origin
- G25.7Other and unspecified drug induced movement disorders
- G25.70Drug induced movement disorder, unspecified
- G25.71Drug induced akathisia
- G25.79Other drug induced movement disorders
- G25.8Other specified extrapyramidal and movement disorders
- G25.81Restless legs syndrome
- G25.82Stiff-man syndrome
- G25.83Benign shuddering attacks
- G25.89Other specified extrapyramidal and movement disorders
- G25.9Extrapyramidal and movement disorder, unspecified
G26
G30
G31
- G31Other degenerative diseases of nervous system, not elsewhere classified
- G31.0Frontotemporal dementia
- G31.01Pick's disease
- G31.09Other frontotemporal neurocognitive disorder
- G31.1Senile degeneration of brain, not elsewhere classified
- G31.2Degeneration of nervous system due to alcohol
- G31.8Other specified degenerative diseases of nervous system
- G31.80Leukodystrophy, unspecified
- G31.81Alpers disease
- G31.82Leigh's disease
- G31.83Neurocognitive disorder with Lewy bodies
- G31.84Mild cognitive impairment of uncertain or unknown etiology
- G31.85Corticobasal degeneration
- G31.86Alexander disease
- G31.87Primary progressive apraxia of speech
- G31.89Other specified degenerative diseases of nervous system
- G31.9Degenerative disease of nervous system, unspecified
G32
- G32Other degenerative disorders of nervous system in diseases classified elsewhere
- G32.0Subacute combined degeneration of spinal cord in diseases classified elsewhere
- G32.8Other specified degenerative disorders of nervous system in diseases classified elsewhere
- G32.81Cerebellar ataxia in diseases classified elsewhere
- G32.89Other specified degenerative disorders of nervous system in diseases classified elsewhere
G35
- G35Multiple sclerosis
- G35.ARelapsing-remitting multiple sclerosis
- G35.BPrimary progressive multiple sclerosis
- G35.B0Primary progressive multiple sclerosis, unspecified
- G35.B1Active primary progressive multiple sclerosis
- G35.B2Non-active primary progressive multiple sclerosis
- G35.CSecondary progressive multiple sclerosis
- G35.C0Secondary progressive multiple sclerosis, unspecified
- G35.C1Active secondary progressive multiple sclerosis
- G35.C2Non-active secondary progressive multiple sclerosis
- G35.DMultiple sclerosis, unspecified
G36
G37
- G37Other demyelinating diseases of central nervous system
- G37.0Diffuse sclerosis of central nervous system
- G37.1Central demyelination of corpus callosum
- G37.2Central pontine myelinolysis
- G37.3Acute transverse myelitis in demyelinating disease of central nervous system
- G37.4Subacute necrotizing myelitis of central nervous system
- G37.5Concentric sclerosis [Balo] of central nervous system
- G37.8Other specified demyelinating diseases of central nervous system
- G37.81Myelin oligodendrocyte glycoprotein antibody disease
- G37.89Other specified demyelinating diseases of central nervous system
- G37.9Demyelinating disease of central nervous system, unspecified
G40
- G40Epilepsy and recurrent seizures
- G40.0Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
- G40.00Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable
- 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
- 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
- G40.10Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable
- 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
- 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
- G40.20Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable
- 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
- 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
- G40.30Generalized idiopathic epilepsy and epileptic syndromes, not intractable
- G40.301Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus
- G40.309Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
- 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
- G40.4Other generalized epilepsy and epileptic syndromes
- G40.40Other generalized epilepsy and epileptic syndromes, not intractable
- 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
- G40.5Epileptic seizures related to external causes
- 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
- G40.8Other epilepsy and recurrent seizures
- G40.80Other epilepsy
- G40.801Other epilepsy, not intractable, with status epilepticus
- G40.802Other epilepsy, not intractable, 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
- 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
- G40.833Dravet syndrome, intractable, with status epilepticus
- G40.834Dravet syndrome, intractable, without status epilepticus
- G40.84KCNQ2-related epilepsy
- G40.841KCNQ2-related epilepsy, not intractable, with status epilepticus
- G40.842KCNQ2-related epilepsy, not intractable, without status epilepticus
- G40.843KCNQ2-related epilepsy, intractable, with status epilepticus
- G40.844KCNQ2-related epilepsy, intractable, without status epilepticus
- G40.89Other seizures
- G40.9Epilepsy, unspecified
- G40.90Epilepsy, unspecified, not intractable
- G40.901Epilepsy, unspecified, not intractable, with status epilepticus
- G40.909Epilepsy, unspecified, not intractable, without status epilepticus
- G40.91Epilepsy, unspecified, intractable
- G40.911Epilepsy, unspecified, intractable, with status epilepticus
- G40.919Epilepsy, unspecified, intractable, without status epilepticus
- G40.AAbsence epileptic syndrome
- 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
- 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
- G40.C1Lafora progressive myoclonus epilepsy, intractable
- G40.C11Lafora progressive myoclonus epilepsy, intractable, with status epilepticus
- G40.C19Lafora progressive myoclonus epilepsy, intractable, without status epilepticus
G43
- G43Migraine
- G43.0Migraine without aura
- G43.00Migraine without aura, not intractable
- G43.001Migraine without aura, not intractable, with status migrainosus
- G43.009Migraine without aura, not intractable, without status migrainosus
- G43.01Migraine without aura, intractable
- G43.011Migraine without aura, intractable, with status migrainosus
- G43.019Migraine without aura, intractable, without status migrainosus
- G43.1Migraine with aura
- G43.10Migraine with aura, not intractable
- G43.101Migraine with aura, not intractable, with status migrainosus
- G43.109Migraine with aura, not intractable, without status migrainosus
- G43.11Migraine with aura, intractable
- G43.111Migraine with aura, intractable, with status migrainosus
- G43.119Migraine with aura, intractable, without status migrainosus
- G43.4Hemiplegic migraine
- G43.40Hemiplegic migraine, not intractable
- G43.401Hemiplegic migraine, not intractable, with status migrainosus
- G43.409Hemiplegic migraine, not intractable, without status migrainosus
- G43.41Hemiplegic migraine, intractable
- 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
- G43.501Persistent migraine aura without cerebral infarction, not intractable, with status migrainosus
- G43.509Persistent migraine aura without cerebral infarction, not intractable, without status migrainosus
- G43.51Persistent migraine aura without cerebral infarction, intractable
- 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
- G43.60Persistent migraine aura with cerebral infarction, not intractable
- 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
- 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
- G43.70Chronic migraine without aura, not intractable
- G43.701Chronic migraine without aura, not intractable, with status migrainosus
- G43.709Chronic migraine without aura, not intractable, without status migrainosus
- G43.71Chronic migraine without aura, intractable
- G43.711Chronic migraine without aura, intractable, with status migrainosus
- G43.719Chronic migraine without aura, intractable, without status migrainosus
- G43.8Other migraine
- G43.80Other migraine, not intractable
- G43.801Other migraine, not intractable, with status migrainosus
- G43.809Other migraine, not intractable, without status migrainosus
- G43.81Other migraine, intractable
- G43.811Other migraine, intractable, with status migrainosus
- G43.819Other migraine, intractable, without status migrainosus
- G43.82Menstrual migraine, not intractable
- G43.821Menstrual migraine, not intractable, with status migrainosus
- G43.829Menstrual migraine, not intractable, without status migrainosus
- G43.83Menstrual migraine, intractable
- G43.831Menstrual migraine, intractable, with status migrainosus
- G43.839Menstrual migraine, intractable, without status migrainosus
- G43.9Migraine, unspecified
- G43.90Migraine, unspecified, not intractable
- G43.901Migraine, unspecified, not intractable, with status migrainosus
- G43.909Migraine, unspecified, not intractable, without status migrainosus
- G43.91Migraine, unspecified, intractable
- G43.911Migraine, unspecified, intractable, with status migrainosus
- G43.919Migraine, unspecified, intractable, without status migrainosus
- G43.ACyclical vomiting
- G43.A0Cyclical vomiting, in migraine, not intractable
- G43.A1Cyclical vomiting, in migraine, intractable
- G43.BOphthalmoplegic migraine
- G43.B0Ophthalmoplegic migraine, not intractable
- G43.B1Ophthalmoplegic migraine, intractable
- G43.CPeriodic headache syndromes in child or adult
- G43.C0Periodic headache syndromes in child or adult, not intractable
- G43.C1Periodic headache syndromes in child or adult, intractable
- G43.DAbdominal migraine
- G43.D0Abdominal migraine, not intractable
- G43.D1Abdominal migraine, intractable
- G43.EChronic migraine with aura
- G43.E0Chronic migraine with aura, not intractable
- G43.E01Chronic migraine with aura, not intractable, with status migrainosus
- G43.E09Chronic migraine with aura, not intractable, without status migrainosus
- G43.E1Chronic migraine with aura, intractable
- G43.E11Chronic migraine with aura, intractable, with status migrainosus
- G43.E19Chronic migraine with aura, intractable, without status migrainosus
G44
- G44Other headache syndromes
- G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)
- G44.00Cluster headache syndrome, unspecified
- G44.001Cluster headache syndrome, unspecified, intractable
- G44.009Cluster headache syndrome, unspecified, not intractable
- G44.01Episodic cluster headache
- G44.011Episodic cluster headache, intractable
- G44.019Episodic cluster headache, not intractable
- G44.02Chronic cluster headache
- G44.021Chronic cluster headache, intractable
- G44.029Chronic cluster headache, not intractable
- G44.03Episodic paroxysmal hemicrania
- G44.031Episodic paroxysmal hemicrania, intractable
- G44.039Episodic paroxysmal hemicrania, not intractable
- G44.04Chronic paroxysmal hemicrania
- G44.041Chronic paroxysmal hemicrania, intractable
- G44.049Chronic paroxysmal hemicrania, not intractable
- 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
- 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
- G44.2Tension-type headache
- G44.20Tension-type headache, unspecified
- G44.201Tension-type headache, unspecified, intractable
- G44.209Tension-type headache, unspecified, not intractable
- G44.21Episodic tension-type headache
- G44.211Episodic tension-type headache, intractable
- G44.219Episodic tension-type headache, not intractable
- G44.22Chronic tension-type headache
- G44.221Chronic tension-type headache, intractable
- G44.229Chronic tension-type headache, not intractable
- G44.3Post-traumatic headache
- G44.30Post-traumatic headache, unspecified
- G44.301Post-traumatic headache, unspecified, intractable
- G44.309Post-traumatic headache, unspecified, not intractable
- G44.31Acute post-traumatic headache
- G44.311Acute post-traumatic headache, intractable
- G44.319Acute post-traumatic headache, not intractable
- G44.32Chronic post-traumatic headache
- G44.321Chronic post-traumatic headache, intractable
- G44.329Chronic post-traumatic headache, not intractable
- G44.4Drug-induced headache, not elsewhere classified
- 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
- G44.81Hypnic headache
- G44.82Headache associated with sexual activity
- G44.83Primary cough headache
- G44.84Primary exertional headache
- G44.85Primary stabbing headache
- G44.86Cervicogenic headache
- G44.89Other headache syndrome
G45
- G45Transient cerebral ischemic attacks and related syndromes
- G45.0Vertebro-basilar artery syndrome
- G45.1Carotid artery syndrome (hemispheric)
- G45.2Multiple and bilateral precerebral artery syndromes
- G45.3Amaurosis fugax
- G45.4Transient global amnesia
- G45.8Other transient cerebral ischemic attacks and related syndromes
- G45.9Transient cerebral ischemic attack, unspecified
G46
- G46Vascular syndromes of brain in cerebrovascular diseases
- G46.0Middle cerebral artery syndrome
- G46.1Anterior cerebral artery syndrome
- G46.2Posterior cerebral artery syndrome
- G46.3Brain stem stroke 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
G47
- G47Sleep disorders
- G47.0Insomnia
- G47.00Insomnia, unspecified
- G47.01Insomnia due to medical condition
- G47.09Other insomnia
- G47.1Hypersomnia
- G47.10Hypersomnia, unspecified
- G47.11Idiopathic hypersomnia with long sleep time
- G47.12Idiopathic hypersomnia without long sleep time
- G47.13Recurrent hypersomnia
- G47.14Hypersomnia due to medical condition
- G47.19Other hypersomnia
- G47.2Circadian rhythm sleep disorders
- G47.20Circadian rhythm sleep disorder, unspecified type
- G47.21Circadian rhythm sleep disorder, delayed sleep phase type
- G47.22Circadian rhythm sleep disorder, advanced sleep phase type
- G47.23Circadian rhythm sleep disorder, irregular sleep wake type
- G47.24Circadian rhythm sleep disorder, free running 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
- G47.29Other circadian rhythm sleep disorder
- G47.3Sleep apnea
- G47.30Sleep apnea, unspecified
- G47.31Primary central sleep apnea
- G47.32High altitude periodic breathing
- G47.33Obstructive sleep apnea (adult) (pediatric)
- G47.34Idiopathic sleep related nonobstructive alveolar hypoventilation
- G47.35Congenital central alveolar hypoventilation syndrome
- G47.36Sleep related hypoventilation in conditions classified elsewhere
- G47.37Central sleep apnea in conditions classified elsewhere
- G47.39Other sleep apnea
- G47.4Narcolepsy and cataplexy
- G47.41Narcolepsy
- G47.411Narcolepsy with cataplexy
- G47.419Narcolepsy without cataplexy
- G47.42Narcolepsy in conditions classified elsewhere
- G47.421Narcolepsy in conditions classified elsewhere with cataplexy
- G47.429Narcolepsy in conditions classified elsewhere without cataplexy
- G47.5Parasomnia
- G47.50Parasomnia, unspecified
- G47.51Confusional arousals
- G47.52REM sleep behavior disorder
- G47.53Recurrent isolated sleep paralysis
- G47.54Parasomnia in conditions classified elsewhere
- G47.59Other parasomnia
- G47.6Sleep related movement disorders
- G47.61Periodic limb movement disorder
- G47.62Sleep related leg cramps
- G47.63Sleep related bruxism
- G47.69Other sleep related movement disorders
- G47.8Other sleep disorders
- G47.9Sleep disorder, unspecified
G50
G51
- G51Facial nerve disorders
- G51.0Bell's palsy
- G51.1Geniculate ganglionitis
- G51.2Melkersson's syndrome
- G51.3Clonic hemifacial spasm
- G51.31Clonic hemifacial spasm, right
- G51.32Clonic hemifacial spasm, left
- G51.33Clonic hemifacial spasm, bilateral
- G51.39Clonic hemifacial spasm, unspecified
- G51.4Facial myokymia
- G51.8Other disorders of facial nerve
- G51.9Disorder of facial nerve, unspecified
G52
- G52Disorders of other cranial nerves
- G52.0Disorders of olfactory nerve
- G52.1Disorders of glossopharyngeal nerve
- G52.2Disorders of vagus nerve
- G52.3Disorders of hypoglossal nerve
- G52.7Disorders of multiple cranial nerves
- G52.8Disorders of other specified cranial nerves
- G52.9Cranial nerve disorder, unspecified
G53
G54
- G54Nerve root and plexus disorders
- G54.0Brachial plexus disorders
- G54.1Lumbosacral plexus disorders
- G54.2Cervical root disorders, not elsewhere classified
- G54.3Thoracic root disorders, not elsewhere classified
- G54.4Lumbosacral root disorders, not elsewhere classified
- G54.5Neuralgic amyotrophy
- G54.6Phantom limb syndrome with pain
- G54.7Phantom limb syndrome without pain
- G54.8Other nerve root and plexus disorders
- G54.9Nerve root and plexus disorder, unspecified
G55
G56
- G56Mononeuropathies of upper limb
- G56.0Carpal tunnel syndrome
- G56.00Carpal tunnel syndrome, unspecified upper limb
- G56.01Carpal tunnel syndrome, right upper limb
- G56.02Carpal tunnel syndrome, left upper limb
- G56.03Carpal tunnel syndrome, bilateral upper limbs
- G56.1Other lesions of median nerve
- G56.10Other lesions of median nerve, unspecified upper limb
- G56.11Other lesions of median nerve, right upper limb
- G56.12Other lesions of median nerve, left upper limb
- G56.13Other lesions of median nerve, bilateral upper limbs
- G56.2Lesion of ulnar nerve
- G56.20Lesion of ulnar nerve, unspecified upper limb
- G56.21Lesion of ulnar nerve, right upper limb
- G56.22Lesion of ulnar nerve, left upper limb
- G56.23Lesion of ulnar nerve, bilateral upper limbs
- G56.3Lesion of radial nerve
- G56.30Lesion of radial nerve, unspecified upper limb
- G56.31Lesion of radial nerve, right upper limb
- G56.32Lesion of radial nerve, left upper limb
- G56.33Lesion of radial nerve, bilateral upper limbs
- G56.4Causalgia of upper limb
- G56.40Causalgia of unspecified upper limb
- G56.41Causalgia of right upper limb
- G56.42Causalgia of left upper limb
- G56.43Causalgia of bilateral upper limbs
- G56.8Other specified mononeuropathies of upper limb
- G56.80Other specified mononeuropathies of unspecified upper limb
- G56.81Other specified mononeuropathies of right upper limb
- G56.82Other specified mononeuropathies of left upper limb
- G56.83Other specified mononeuropathies of bilateral upper limbs
- G56.9Unspecified mononeuropathy of upper limb
- G56.90Unspecified mononeuropathy of unspecified upper limb
- G56.91Unspecified mononeuropathy of right upper limb
- G56.92Unspecified mononeuropathy of left upper limb
- G56.93Unspecified mononeuropathy of bilateral upper limbs
G57
- G57Mononeuropathies of lower limb
- G57.0Lesion of sciatic nerve
- G57.00Lesion of sciatic nerve, unspecified lower limb
- G57.01Lesion of sciatic nerve, right lower limb
- G57.02Lesion of sciatic nerve, left lower limb
- G57.03Lesion of sciatic nerve, bilateral lower limbs
- G57.1Meralgia paresthetica
- G57.10Meralgia paresthetica, unspecified lower limb
- G57.11Meralgia paresthetica, right lower limb
- G57.12Meralgia paresthetica, left lower limb
- G57.13Meralgia paresthetica, bilateral lower limbs
- G57.2Lesion of femoral nerve
- G57.20Lesion of femoral nerve, unspecified lower limb
- G57.21Lesion of femoral nerve, right lower limb
- G57.22Lesion of femoral nerve, left lower limb
- G57.23Lesion of femoral nerve, bilateral lower limbs
- G57.3Lesion of lateral popliteal nerve
- G57.30Lesion of lateral popliteal nerve, unspecified lower limb
- G57.31Lesion of lateral popliteal nerve, right lower limb
- G57.32Lesion of lateral popliteal nerve, left lower limb
- G57.33Lesion of lateral popliteal nerve, bilateral lower limbs
- G57.4Lesion of medial popliteal nerve
- G57.40Lesion of medial popliteal nerve, unspecified lower limb
- G57.41Lesion of medial popliteal nerve, right lower limb
- G57.42Lesion of medial popliteal nerve, left lower limb
- G57.43Lesion of medial popliteal nerve, bilateral lower limbs
- G57.5Tarsal tunnel syndrome
- G57.50Tarsal tunnel syndrome, unspecified lower limb
- G57.51Tarsal tunnel syndrome, right lower limb
- G57.52Tarsal tunnel syndrome, left lower limb
- G57.53Tarsal tunnel syndrome, bilateral lower limbs
- G57.6Lesion of plantar nerve
- G57.60Lesion of plantar nerve, unspecified lower limb
- G57.61Lesion of plantar nerve, right lower limb
- G57.62Lesion of plantar nerve, left lower limb
- G57.63Lesion of plantar nerve, bilateral lower limbs
- G57.7Causalgia of lower limb
- G57.70Causalgia of unspecified lower limb
- G57.71Causalgia of right lower limb
- G57.72Causalgia of left lower limb
- G57.73Causalgia of bilateral lower limbs
- G57.8Other specified mononeuropathies of lower limb
- G57.80Other specified mononeuropathies of unspecified lower limb
- G57.81Other specified mononeuropathies of right lower limb
- G57.82Other specified mononeuropathies of left lower limb
- G57.83Other specified mononeuropathies of bilateral lower limbs
- G57.9Unspecified mononeuropathy of lower limb
- G57.90Unspecified mononeuropathy of unspecified lower limb
- G57.91Unspecified mononeuropathy of right lower limb
- G57.92Unspecified mononeuropathy of left lower limb
- G57.93Unspecified mononeuropathy of bilateral lower limbs
G58
G59
G60
G61
G62
- G62Other and unspecified polyneuropathies
- G62.0Drug-induced polyneuropathy
- G62.1Alcoholic polyneuropathy
- G62.2Polyneuropathy due to other toxic agents
- G62.8Other specified polyneuropathies
- G62.81Critical illness polyneuropathy
- G62.82Radiation-induced polyneuropathy
- G62.89Other specified polyneuropathies
- G62.9Polyneuropathy, unspecified
G63
G64
G65
G70
- G70Myasthenia gravis and other myoneural disorders
- G70.0Myasthenia gravis
- G70.00Myasthenia gravis without (acute) exacerbation
- G70.01Myasthenia gravis with (acute) exacerbation
- G70.1Toxic myoneural disorders
- G70.2Congenital and developmental myasthenia
- G70.8Other specified myoneural disorders
- G70.80Lambert-Eaton syndrome, unspecified
- G70.81Lambert-Eaton syndrome in disease classified elsewhere
- G70.89Other specified myoneural disorders
- G70.9Myoneural disorder, unspecified
G71
- G71Primary disorders of muscles
- G71.0Muscular dystrophy
- G71.00Muscular dystrophy, unspecified
- G71.01Duchenne or Becker muscular dystrophy
- G71.02Facioscapulohumeral muscular dystrophy
- G71.03Limb girdle muscular dystrophies
- G71.031Autosomal dominant limb girdle muscular dystrophy
- G71.032Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction
- G71.033Limb girdle muscular dystrophy due to dysferlin dysfunction
- G71.034Limb girdle muscular dystrophy due to sarcoglycan dysfunction
- G71.0340Limb girdle muscular dystrophy due to sarcoglycan dysfunction, unspecified
- G71.0341Limb girdle muscular dystrophy due to alpha sarcoglycan dysfunction
- G71.0342Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction
- G71.0349Limb girdle muscular dystrophy due to other sarcoglycan dysfunction
- G71.035Limb girdle muscular dystrophy due to anoctamin-5 dysfunction
- G71.036Limb girdle muscular dystrophy due to fukutin related protein dysfunction
- G71.038Other limb girdle muscular dystrophy
- G71.039Limb girdle muscular dystrophy, unspecified
- G71.09Other specified muscular dystrophies
- G71.1Myotonic disorders
- G71.11Myotonic muscular dystrophy
- G71.12Myotonia congenita
- G71.13Myotonic chondrodystrophy
- G71.14Drug induced myotonia
- G71.19Other specified myotonic disorders
- G71.2Congenital myopathies
- G71.20Congenital myopathy, unspecified
- G71.21Nemaline myopathy
- G71.22Centronuclear myopathy
- G71.220X-linked myotubular myopathy
- G71.228Other centronuclear myopathy
- G71.29Other congenital myopathy
- G71.3Mitochondrial myopathy, not elsewhere classified
- G71.8Other primary disorders of muscles
- G71.9Primary disorder of muscle, unspecified
G72
- G72Other and unspecified myopathies
- G72.0Drug-induced myopathy
- G72.1Alcoholic myopathy
- G72.2Myopathy due to other toxic agents
- G72.3Periodic paralysis
- G72.4Inflammatory and immune myopathies, not elsewhere classified
- G72.41Inclusion body myositis [IBM]
- G72.49Other inflammatory and immune myopathies, not elsewhere classified
- G72.8Other specified myopathies
- G72.81Critical illness myopathy
- G72.89Other specified myopathies
- G72.9Myopathy, unspecified
G73
G80
G81
- G81Hemiplegia and hemiparesis
- G81.0Flaccid hemiplegia
- G81.00Flaccid hemiplegia affecting unspecified side
- G81.01Flaccid hemiplegia affecting right dominant side
- G81.02Flaccid hemiplegia affecting left dominant side
- G81.03Flaccid hemiplegia affecting right nondominant side
- G81.04Flaccid hemiplegia affecting left nondominant side
- G81.1Spastic hemiplegia
- G81.10Spastic hemiplegia affecting unspecified side
- G81.11Spastic hemiplegia affecting right dominant side
- G81.12Spastic hemiplegia affecting left dominant side
- G81.13Spastic hemiplegia affecting right nondominant side
- G81.14Spastic hemiplegia affecting left nondominant side
- G81.9Hemiplegia, unspecified
- G81.90Hemiplegia, unspecified affecting unspecified side
- G81.91Hemiplegia, unspecified affecting right dominant side
- G81.92Hemiplegia, unspecified affecting left dominant side
- G81.93Hemiplegia, unspecified affecting right nondominant side
- G81.94Hemiplegia, unspecified affecting left nondominant side
G82
- G82Paraplegia (paraparesis) and quadriplegia (quadriparesis)
- G82.2Paraplegia
- G82.20Paraplegia, unspecified
- G82.21Paraplegia, complete
- G82.22Paraplegia, incomplete
- G82.5Quadriplegia
- G82.50Quadriplegia, unspecified
- G82.51Quadriplegia, C1-C4 complete
- G82.52Quadriplegia, C1-C4 incomplete
- G82.53Quadriplegia, C5-C7 complete
- G82.54Quadriplegia, C5-C7 incomplete
G83
- G83Other paralytic syndromes
- G83.0Diplegia of upper limbs
- G83.1Monoplegia of lower limb
- G83.10Monoplegia of lower limb affecting unspecified side
- G83.11Monoplegia of lower limb affecting right dominant side
- G83.12Monoplegia of lower limb affecting left dominant side
- G83.13Monoplegia of lower limb affecting right nondominant side
- G83.14Monoplegia of lower limb affecting left nondominant side
- G83.2Monoplegia of upper limb
- G83.20Monoplegia of upper limb affecting unspecified side
- G83.21Monoplegia of upper limb affecting right dominant side
- G83.22Monoplegia of upper limb affecting left dominant side
- G83.23Monoplegia of upper limb affecting right nondominant side
- G83.24Monoplegia of upper limb affecting left nondominant side
- G83.3Monoplegia, unspecified
- G83.30Monoplegia, unspecified affecting unspecified side
- G83.31Monoplegia, unspecified affecting right dominant side
- G83.32Monoplegia, unspecified affecting left dominant side
- G83.33Monoplegia, unspecified affecting right nondominant side
- G83.34Monoplegia, unspecified affecting left nondominant side
- G83.4Cauda equina syndrome
- G83.5Locked-in state
- G83.8Other specified paralytic syndromes
- G83.81Brown-Sequard syndrome
- G83.82Anterior cord syndrome
- G83.83Posterior cord syndrome
- G83.84Todd's paralysis (postepileptic)
- G83.89Other specified paralytic syndromes
- G83.9Paralytic syndrome, unspecified
G89
- G89Pain, not elsewhere classified
- G89.0Central pain syndrome
- G89.1Acute pain, not elsewhere classified
- G89.11Acute pain due to trauma
- G89.12Acute post-thoracotomy pain
- G89.18Other acute postprocedural pain
- G89.2Chronic pain, not elsewhere classified
- G89.21Chronic pain due to trauma
- G89.22Chronic post-thoracotomy pain
- G89.28Other chronic postprocedural pain
- G89.29Other chronic pain
- G89.3Neoplasm related pain (acute) (chronic)
- G89.4Chronic pain syndrome
G90
- G90Disorders of autonomic nervous system
- G90.0Idiopathic peripheral autonomic neuropathy
- G90.01Carotid sinus syncope
- G90.09Other idiopathic peripheral autonomic neuropathy
- G90.1Familial dysautonomia [Riley-Day]
- G90.2Horner's syndrome
- G90.3Multi-system degeneration of the autonomic nervous system
- G90.4Autonomic dysreflexia
- G90.5Complex regional pain syndrome I (CRPS I)
- G90.50Complex regional pain syndrome I, unspecified
- G90.51Complex regional pain syndrome I of upper limb
- G90.511Complex regional pain syndrome I of right upper limb
- G90.512Complex regional pain syndrome I of left upper limb
- G90.513Complex regional pain syndrome I of upper limb, bilateral
- G90.519Complex regional pain syndrome I of unspecified upper limb
- G90.52Complex regional pain syndrome I of lower limb
- G90.521Complex regional pain syndrome I of right lower limb
- G90.522Complex regional pain syndrome I of left lower limb
- G90.523Complex regional pain syndrome I of lower limb, bilateral
- G90.529Complex regional pain syndrome I of unspecified lower limb
- G90.59Complex regional pain syndrome I of other specified site
- G90.8Other disorders of autonomic nervous system
- G90.81Serotonin syndrome
- G90.89Other disorders of autonomic nervous system
- G90.9Disorder of the autonomic nervous system, unspecified
- G90.APostural orthostatic tachycardia syndrome [POTS]
- G90.BLMNB1-related autosomal dominant leukodystrophy
G91
G92
- G92Toxic encephalopathy
- G92.0Immune effector cell-associated neurotoxicity syndrome
- G92.00Immune effector cell-associated neurotoxicity syndrome, grade unspecified
- G92.01Immune effector cell-associated neurotoxicity syndrome, grade 1
- G92.02Immune effector cell-associated neurotoxicity syndrome, grade 2
- G92.03Immune effector cell-associated neurotoxicity syndrome, grade 3
- G92.04Immune effector cell-associated neurotoxicity syndrome, grade 4
- G92.05Immune effector cell-associated neurotoxicity syndrome, grade 5
- G92.8Other toxic encephalopathy
- G92.9Unspecified toxic encephalopathy
G93
- G93Other disorders of brain
- G93.0Cerebral cysts
- G93.1Anoxic brain damage, not elsewhere classified
- G93.2Benign intracranial hypertension
- G93.3Postviral and related fatigue syndromes
- G93.31Postviral fatigue syndrome
- G93.32Myalgic encephalomyelitis/chronic fatigue syndrome
- G93.39Other post infection and related fatigue syndromes
- G93.4Other and unspecified encephalopathy
- G93.40Encephalopathy, unspecified
- G93.41Metabolic encephalopathy
- G93.42Megalencephalic leukoencephalopathy with subcortical cysts
- G93.43Leukoencephalopathy with calcifications and cysts
- G93.44Adult-onset leukodystrophy with axonal spheroids
- G93.45Developmental and epileptic encephalopathy
- G93.49Other encephalopathy
- G93.5Compression of brain
- G93.6Cerebral edema
- G93.7Reye's syndrome
- G93.8Other specified disorders of brain
- G93.81Temporal sclerosis
- G93.82Brain death
- G93.89Other specified disorders of brain
- G93.9Disorder of brain, unspecified
G94
G95
- G95Other and unspecified diseases of spinal cord
- G95.0Syringomyelia and syringobulbia
- G95.1Vascular myelopathies
- G95.11Acute infarction of spinal cord (embolic) (nonembolic)
- G95.19Other vascular myelopathies
- G95.2Other and unspecified cord compression
- G95.20Unspecified cord compression
- G95.29Other cord compression
- G95.8Other specified diseases of spinal cord
- G95.81Conus medullaris syndrome
- G95.89Other specified diseases of spinal cord
- G95.9Disease of spinal cord, unspecified
G96
- G96Other disorders of central nervous system
- G96.0Cerebrospinal fluid leak
- G96.00Cerebrospinal fluid leak, unspecified
- G96.01Cranial cerebrospinal fluid leak, spontaneous
- G96.02Spinal cerebrospinal fluid leak, spontaneous
- G96.08Other cranial cerebrospinal fluid leak
- G96.09Other spinal cerebrospinal fluid leak
- G96.1Disorders of meninges, not elsewhere classified
- G96.11Dural tear
- G96.12Meningeal adhesions (cerebral) (spinal)
- G96.19Other disorders of meninges, not elsewhere classified
- G96.191Perineural cyst
- G96.198Other disorders of meninges, not elsewhere classified
- G96.8Other specified disorders of central nervous system
- G96.81Intracranial hypotension
- G96.810Intracranial hypotension, unspecified
- G96.811Intracranial hypotension, spontaneous
- G96.819Other intracranial hypotension
- G96.89Other specified disorders of central nervous system
- G96.9Disorder of central nervous system, unspecified
G97
- G97Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
- G97.0Cerebrospinal fluid leak from spinal puncture
- G97.1Other reaction to spinal and lumbar puncture
- G97.2Intracranial hypotension following ventricular shunting
- G97.3Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating a procedure
- G97.31Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating a nervous system procedure
- G97.32Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating other procedure
- G97.4Accidental puncture and laceration of a nervous system organ or structure during a procedure
- G97.41Accidental puncture or laceration of dura during a procedure
- G97.48Accidental puncture and laceration of other nervous system organ or structure during a nervous system procedure
- G97.49Accidental puncture and laceration of other nervous system organ or structure during other procedure
- G97.5Postprocedural hemorrhage of a nervous system organ or structure following a procedure
- G97.51Postprocedural hemorrhage of a nervous system organ or structure following a nervous system procedure
- G97.52Postprocedural hemorrhage of a nervous system organ or structure following other procedure
- G97.6Postprocedural hematoma and seroma of a nervous system organ or structure following a procedure
- G97.61Postprocedural hematoma of a nervous system organ or structure following a nervous system procedure
- G97.62Postprocedural hematoma of a nervous system organ or structure following other procedure
- G97.63Postprocedural seroma of a nervous system organ or structure following a nervous system procedure
- G97.64Postprocedural seroma of a nervous system organ or structure following other procedure
- G97.8Other intraoperative and postprocedural complications and disorders of nervous system
- G97.81Other intraoperative complications of nervous system
- G97.82Other postprocedural complications and disorders of nervous system
- G97.83Intracranial hypotension following lumbar cerebrospinal fluid shunting
- G97.84Intracranial hypotension following other procedure
G98
G99
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