G12 Spinal muscular atrophy and related syndromes

Category / Non-billable header 12 subcodes

Block: Systemic atrophies primarily affecting the central nervous system (G10-G14)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
G12..0 Infantile spinal muscular atrophy, type I [Werdnig-Hoffman] Yes
G12..1 Other inherited spinal muscular atrophy Yes
G12..2 Motor neuron disease No
G12..20 Motor neuron disease, unspecified Yes
G12..21 Amyotrophic lateral sclerosis Yes
G12..22 Progressive bulbar palsy Yes
G12..23 Primary lateral sclerosis Yes
G12..24 Familial motor neuron disease Yes
G12..25 Progressive spinal muscle atrophy Yes
G12..29 Other motor neuron disease Yes
G12..8 Other spinal muscular atrophies and related syndromes Yes
G12..9 Spinal muscular atrophy, unspecified Yes

Last reviewed: September 2026