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).
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. Listed second marks a billable manifestation code (its CDC title says it is "classified elsewhere"): code the underlying disease or condition first, then this code.
121 to 160 of 932
- G25.5Other choreaBillable
- G25.6Drug induced tics and other tics of organic originHeader
- G25.61Drug induced ticsBillable
- G25.69Other tics of organic originBillable
- G25.7Other and unspecified drug induced movement disordersHeader
- G25.70Drug induced movement disorder, unspecifiedBillable
- G25.71Drug induced akathisiaBillable
- G25.79Other drug induced movement disordersBillable
- G25.8Other specified extrapyramidal and movement disordersHeader
- G25.81Restless legs syndromeBillable
- G25.82Stiff-man syndromeBillable
- G25.83Benign shuddering attacksBillable
- G25.89Other specified extrapyramidal and movement disordersBillable
- G25.9Extrapyramidal and movement disorder, unspecifiedBillable
- G26Extrapyramidal and movement disord in diseases classd elswhrListed second
- G30Alzheimer's diseaseHeader
- G30.0Alzheimer's disease with early onsetBillable
- G30.1Alzheimer's disease with late onsetBillable
- G30.8Other Alzheimer's diseaseBillable
- G30.9Alzheimer's disease, unspecifiedBillable
- G31Other degenerative diseases of nervous system, NECHeader
- G31.0Frontotemporal dementiaHeader
- G31.01Pick's diseaseBillable
- G31.09Other frontotemporal neurocognitive disorderBillable
- G31.1Senile degeneration of brain, not elsewhere classifiedBillable
- G31.2Degeneration of nervous system due to alcoholBillable
- G31.8Other specified degenerative diseases of nervous systemHeader
- G31.80Leukodystrophy, unspecifiedBillable
- G31.81Alpers diseaseBillable
- G31.82Leigh's diseaseBillable
- G31.83Neurocognitive disorder with Lewy bodiesBillable
- G31.84Mild cognitive impairment of uncertain or unknown etiologyBillable
- G31.85Corticobasal degenerationBillable
- G31.86Alexander diseaseBillable
- G31.87Primary progressive apraxia of speechBillable
- G31.89Other specified degenerative diseases of nervous systemBillable
- G31.9Degenerative disease of nervous system, unspecifiedBillable
- G32Other degeneratv disord of nervous system in dis classd elswhrHeader
- G32.0Subac comb degeneration of spinal cord in dis classd elswhrListed second
- G32.8Other degeneratv disord of nervous system in dis classd elswhrHeader
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