G00–G99: Diseases of the Nervous System
Chapter 6 of ICD-10-CM 2027, 932 codes in 11 blocks.
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Chapter instructions
Excludes2: not included here, code separately if applicable
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Codes in this chapter
All codesBillable only932 results
- G23.8Other specified degenerative diseases of basal ganglia
- G23.9Degenerative disease of basal ganglia, unspecified
- 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
- 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
- G26Extrapyramidal and movement disorders in diseases classified elsewhere
- G30Alzheimer's disease
- G30.0Alzheimer's disease with early onset
- G30.1Alzheimer's disease with late onset
- G30.8Other Alzheimer's disease
- G30.9Alzheimer's disease, unspecified
- 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