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.
281 to 320 of 932
- G40.91Epilepsy, unspecified, intractableHeader
- G40.911Epilepsy, unspecified, intractable, with status epilepticusBillable
- G40.919Epilepsy, unspecified, intractable, without status epilepticusBillable
- G43MigraineHeader
- G43.0Migraine without auraHeader
- G43.00Migraine without aura, not intractableHeader
- G43.001Migraine without aura, not intractable, with status migrainosusBillable
- G43.009Migraine without aura, not intractable, without status migrainosusBillable
- G43.01Migraine without aura, intractableHeader
- G43.011Migraine without aura, intractable, with status migrainosusBillable
- G43.019Migraine without aura, intractable, without status migrainosusBillable
- G43.1Migraine with auraHeader
- G43.10Migraine with aura, not intractableHeader
- G43.101Migraine with aura, not intractable, with status migrainosusBillable
- G43.109Migraine with aura, not intractable, without status migrainosusBillable
- G43.11Migraine with aura, intractableHeader
- G43.111Migraine with aura, intractable, with status migrainosusBillable
- G43.119Migraine with aura, intractable, without status migrainosusBillable
- G43.4Hemiplegic migraineHeader
- G43.40Hemiplegic migraine, not intractableHeader
- G43.401Hemiplegic migraine, not intractable, with status migrainosusBillable
- G43.409Hemiplegic migraine, not intractable, without status migrainosusBillable
- G43.41Hemiplegic migraine, intractableHeader
- G43.411Hemiplegic migraine, intractable, with status migrainosusBillable
- G43.419Hemiplegic migraine, intractable, without status migrainosusBillable
- G43.5Persistent migraine aura without cerebral infarctionHeader
- G43.50Persistent migraine aura without cerebral infarction, not ntrctHeader
- G43.501Perst migraine aura without cereb infrc, not ntrct, with stat migrBillable
- G43.509Perst migrn aura without cereb infrc, not ntrct, without stat migrBillable
- G43.51Persistent migraine aura without cerebral infarction, ntrctHeader
- G43.511Perst migraine aura without cerebral infrc, ntrct, with stat migrBillable
- G43.519Perst migraine aura without cerebral infrc, ntrct, without stat migrBillable
- G43.6Persistent migraine aura with cerebral infarctionHeader
- G43.60Persistent migraine aura with cerebral infarction, not ntrctHeader
- G43.601Perst migraine aura with cerebral infrc, not ntrct, with stat migrBillable
- G43.609Perst migraine aura with cereb infrc, not ntrct, without stat migrBillable
- G43.61Persistent migraine aura with cerebral infarction, intractableHeader
- G43.611Perst migraine aura with cerebral infrc, ntrct, with stat migrBillable
- G43.619Perst migraine aura with cerebral infrc, ntrct, without stat migrBillable
- G43.7Chronic migraine without auraHeader