G00-G09
- Inflammatory diseases of the central nervous system (G00-G09)
G10-G14
- Systemic atrophies primarily affecting the central nervous system (G10-G14)
G20-G26
- Extrapyramidal and movement disorders (G20-G26)
G30-G32
- Other degenerative diseases of the nervous system (G30-G32)
G35-G37
- Demyelinating diseases of the central nervous system (G35-G37)
G40-G47
- Episodic and paroxysmal disorders (G40-G47)
G50-G59
- Nerve, nerve root and plexus disorders (G50-G59)
- current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region
- neuralgia NOS (M79.2)
- neuritis NOS (M79.2)
- peripheral neuritis in pregnancy (O26.82-)
- radiculitis NOS (M54.1-)
G60-G65
- Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)
- neuralgia NOS (M79.2)
- neuritis NOS (M79.2)
- peripheral neuritis in pregnancy (O26.82-)
- radiculitis NOS (M54.10)
G70-G73
- Diseases of myoneural junction and muscle (G70-G73)
G80-G83
- Cerebral palsy and other paralytic syndromes (G80-G83)
G89-G99
- Other disorders of the nervous system (G89-G99)