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)
Blocks
- G00-G09Inflammatory diseases of the central nervous system
- G10-G14Systemic atrophies primarily affecting the central nervous system
- G20-G26Extrapyramidal and movement disorders
- G30-G32Other degenerative diseases of the nervous system
- G35-G37Demyelinating diseases of the central nervous system
- G40-G47Episodic and paroxysmal disorders
- G50-G59Nerve, nerve root and plexus disorders
- G60-G65Polyneuropathies and other disorders of the peripheral nervous system
- G70-G73Diseases of myoneural junction and muscle
- G80-G83Cerebral palsy and other paralytic syndromes
- G89-G99Other disorders of the nervous system
Codes in this chapter
All codesBillable only700 results
- G00.0Hemophilus meningitis
- G00.1Pneumococcal meningitis
- G00.2Streptococcal meningitis
- G00.3Staphylococcal meningitis
- G00.8Other bacterial meningitis
- G00.9Bacterial meningitis, unspecified
- G01Meningitis in bacterial diseases classified elsewhere
- G02Meningitis in other infectious and parasitic diseases classified elsewhere
- G03.0Nonpyogenic meningitis
- G03.1Chronic meningitis
- G03.2Benign recurrent meningitis [Mollaret]
- G03.8Meningitis due to other specified causes
- G03.9Meningitis, unspecified
- 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
- G04.30Acute necrotizing hemorrhagic encephalopathy, unspecified
- G04.31Postinfectious acute necrotizing hemorrhagic encephalopathy
- G04.32Postimmunization acute necrotizing hemorrhagic encephalopathy
- G04.39Other acute necrotizing hemorrhagic encephalopathy
- G04.81Other encephalitis and encephalomyelitis
- G04.82Acute flaccid myelitis
- G04.89Other myelitis
- G04.90Encephalitis and encephalomyelitis, unspecified
- G04.91Myelitis, unspecified
- G05.3Encephalitis and encephalomyelitis in diseases classified elsewhere
- G05.4Myelitis in diseases classified elsewhere
- G06.0Intracranial abscess and granuloma
- G06.1Intraspinal abscess and granuloma
- G06.2Extradural and subdural abscess, unspecified
- G07Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere
- G08Intracranial and intraspinal phlebitis and thrombophlebitis
- G09Sequelae of inflammatory diseases of central nervous system
- G10Huntington's disease
- G11.0Congenital nonprogressive 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
- G12.0Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
- G12.1Other inherited spinal muscular atrophy
- G12.20Motor neuron disease, unspecified
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