G12: Spinal muscular atrophy and related syndromes

Codes under G12 (Spinal muscular atrophy and related syndromes). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
G12.0	Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]	✓
G12.1	Other inherited spinal muscular atrophy	✓
G12.2	Motor neuron disease	—
G12.8	Other spinal muscular atrophies and related syndromes	✓
G12.9	Spinal muscular atrophy, unspecified	✓
G12.20	Motor neuron disease, unspecified	✓
G12.21	Amyotrophic lateral sclerosis	✓
G12.22	Progressive bulbar palsy	✓
G12.23	Primary lateral sclerosis	✓
G12.24	Familial motor neuron disease	✓
G12.25	Progressive spinal muscle atrophy	✓
G12.29	Other motor neuron disease	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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