Chapter VI of ICD-10 is titled “Diseases of the nervous system”. It spans codes G00–G99, in 11 blocks.
What Chapter VI excludes
Conditions that look similar but belong under another code.
- 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
Blocks in Chapter VI
- G00–G09Inflammatory diseases of the central nervous system10 categories
- G10–G14Systemic atrophies primarily affecting the central nervous system5 categories
- G20–G26Extrapyramidal and movement disorders7 categories
- G30–G32Other degenerative diseases of the nervous system3 categories
- G35–G37Demyelinating diseases of the central nervous system3 categories
- G40–G47Episodic and paroxysmal disorders7 categories
- G50–G59Nerve, nerve root and plexus disorders10 categories
- G60–G64Polyneuropathies and other disorders of the peripheral nervous system5 categories
- G70–G73Diseases of myoneural junction and muscle4 categories
- G80–G83Cerebral palsy and other paralytic syndromes4 categories
- G90–G99Other disorders of the nervous system10 categories
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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