Chapter VI

Diseases of the nervous system
(G00-G99)

Excludes: certain conditions originating in the perinatal period ( P00-P96 )
certain infectious and parasitic diseases ( A00-B99 )
complications of pregnancy, childbirth and the puerperium ( O00-O99 )
congenital malformations, deformations and chromosomal abnormalities ( Q00-Q99 )
endocrine, nutritional and metabolic diseases ( E00-E90 )
injury, poisoning and certain other consequences of external causes ( S00-T98 )
neoplasms ( C00-D48 )
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified ( R00-R99 )

This chapter contains the following blocks:
G00-G09 Inflammatory diseases of the central nervous system
G10-G13 Systemic atrophies primarily affecting the central nervous system
G20-G26 Extrapyramidal and movement disorders
G30-G32 Other degenerative diseases of the nervous system
G35-G37 Demyelinating diseases of the central nervous system
G40-G47 Episodic and paroxysmal disorders
G50-G59 Nerve, nerve root and plexus disorders
G60-G64 Polyneuropathies and other disorders of the peripheral nervous system
G70-G73 Diseases of myoneural junction and muscle
G80-G83 Cerebral palsy and other paralytic syndromes
G90-G99 Other disorders of the nervous system

Asterisk categories for this chapter are provided as follows:
G01* Meningitis in bacterial diseases classified elsewhere
G02* Meningitis in other infectious and parasitic diseases classified elsewhere
G05* Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
G07* Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere
G13* Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
G22* Parkinsonism in diseases classified elsewhere
G26* Extrapyramidal and movement disorders in diseases classified elsewhere
G32* Other degenerative disorders of nervous system in diseases classified elsewhere
G46* Vascular syndromes of brain in cerebrovascular diseases
G53* Cranial nerve disorders in diseases classified elsewhere
G55* Nerve root and plexus compressions in diseases classified elsewhere
G59* Mononeuropathy in diseases classified elsewhere
G63* Polyneuropathy in diseases classified elsewhere
G73* Disorders of myoneural junction and muscle in diseases classified elsewhere
G94* Other disorders of brain in diseases classified elsewhere
G99* Other disorders of nervous system in diseases classified elsewhere