ICD-10-CM
Diseases of the nervous system
Chapter 6, G00-G99. CDC FY2027 file dated June 16, 2026.
License: a US government work, in the public domain (Public Domain Mark 1.0).
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Categories
68 categories in this chapter. Open one, or page through every code below.
- G00Bacterial meningitis, not elsewhere classified
- G01Meningitis in bacterial diseases classified elsewhere
- G02Meningitis in other infec/parastc diseases classd elswhr
- G03Meningitis due to other and unspecified causes
- G04Encephalitis, myelitis and encephalomyelitis
- G05Encphlts, myelitis and encephalomyelitis in dis classd elswhr
- G06Intracranial and intraspinal abscess and granuloma
- G07Intcrn and intraspinal abscs and granuloma in dis classd elswhr
- G08Intracranial and intraspinal phlebitis and thrombophlebitis
- G09Sequelae of inflammatory diseases of central nervous system
- G10Huntington's disease
- G11Hereditary ataxia
- G12Spinal muscular atrophy and related syndromes
- G13Systemic atrophies aff cnsl in diseases classd elswhr
- G14Postpolio syndrome
- G20Parkinson's disease
- G21Secondary parkinsonism
- G23Other degenerative diseases of basal ganglia
- G24Dystonia
- G25Other extrapyramidal and movement disorders
- G26Extrapyramidal and movement disord in diseases classd elswhr
- G30Alzheimer's disease
- G31Other degenerative diseases of nervous system, NEC
- G32Other degeneratv disord of nervous system in dis classd elswhr
- G35Multiple sclerosis
- G36Other acute disseminated demyelination
- G37Other demyelinating diseases of central nervous system
- G40Epilepsy and recurrent seizures
- G43Migraine
- G44Other headache syndromes
- G45Transient cerebral ischemic attacks and related syndromes
- G46Vascular syndromes of brain in cerebrovascular diseases
- G47Sleep disorders
- G50Disorders of trigeminal nerve
- G51Facial nerve disorders
- G52Disorders of other cranial nerves
32 more categories are in this chapter. Type a code or a term to open one.
Codes
A header groups codes and is not billed. A billable code is one you can report.
201 to 240 of 932
- G40.109Local-rel symptc epi with simp part seiz,not ntrct, without stat epiBillable
- G40.11Local-rel (focal) symptc epi with simple partial seiz, ntrctHeader
- G40.111Local-rel symptc epi with simple part seiz, ntrct, with stat epiBillable
- G40.119Local-rel symptc epi with simple part seiz, ntrct, without stat epiBillable
- G40.2Local-rel (focal) symptc epilepsy with complex partial seizuresHeader
- G40.20Local-rel symptc epi with complex partial seiz, not ntrctHeader
- G40.201Local-rel symptc epi with cmplx part seiz, not ntrct, with stat epiBillable
- G40.209Local-rel symptc epi with cmplx part seiz,not ntrct,without stat epiBillable
- G40.21Local-rel (focal) symptc epi with complex partial seiz, ntrctHeader
- G40.211Local-rel symptc epi with cmplx partial seiz, ntrct, with stat epiBillable
- G40.219Local-rel symptc epi with cmplx part seiz, ntrct, without stat epiBillable
- G40.3Generalized idiopathic epilepsy and epileptic syndromesHeader
- G40.30Generalized idiopathic epilepsy, not intractableHeader
- G40.301Gen idiopathic epilepsy, not intractable, with stat epiBillable
- G40.309Gen idiopathic epilepsy, not intractable, without stat epiBillable
- G40.31Generalized idiopathic epilepsy, intractableHeader
- G40.311Generalized idiopathic epilepsy, intractable, with stat epiBillable
- G40.319Generalized idiopathic epilepsy, intractable, without stat epiBillable
- G40.AAbsence epileptic syndromeHeader
- G40.A0Absence epileptic syndrome, not intractableHeader
- G40.A01Absence epileptic syndrome, not intractable, with stat epiBillable
- G40.A09Absence epileptic syndrome, not intractable, without stat epiBillable
- G40.A1Absence epileptic syndrome, intractableHeader
- G40.A11Absence epileptic syndrome, intractable, with stat epiBillable
- G40.A19Absence epileptic syndrome, intractable, without stat epiBillable
- G40.BJuvenile myoclonic epilepsy [impulsive petit mal]Header
- G40.B0Juvenile myoclonic epilepsy, not intractableHeader
- G40.B01Juvenile myoclonic epilepsy, not intractable, with stat epiBillable
- G40.B09Juvenile myoclonic epilepsy, not intractable, without stat epiBillable
- G40.B1Juvenile myoclonic epilepsy, intractableHeader
- G40.B11Juvenile myoclonic epilepsy, intractable, with stat epiBillable
- G40.B19Juvenile myoclonic epilepsy, intractable, without stat epiBillable
- G40.CLafora progressive myoclonus epilepsyHeader
- G40.C0Lafora progressive myoclonus epilepsy, not intractableHeader
- G40.C01Lafora progr myoclonus epilepsy, not ntrct, with stat epiBillable
- G40.C09Lafora progr myoclonus epilepsy, not ntrct, without stat epiBillable
- G40.C1Lafora progressive myoclonus epilepsy, intractableHeader
- G40.C11Lafora progressive myoclonus epilepsy, ntrct, with stat epiBillable
- G40.C19Lafora progr myoclonus epilepsy, ntrct, without stat epiBillable
- G40.4Other generalized epilepsy and epileptic syndromesHeader