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] | ✓ |
| G12.0 | Infantile spinal muscular atrophy, type I [Werdnig-Hoffman] | ✓ |
| G12.1 | Other inherited spinal muscular atrophy | ✓ |
| G12.1 | Other inherited spinal muscular atrophy | ✓ |
| G12.2 | Motor neuron disease | — |
| G12.2 | Motor neuron disease | — |
| G12.8 | Other spinal muscular atrophies and related syndromes | ✓ |
| G12.8 | Other spinal muscular atrophies and related syndromes | ✓ |
| G12.9 | Spinal muscular atrophy, unspecified | ✓ |
| G12.9 | Spinal muscular atrophy, unspecified | ✓ |
| G12.20 | Motor neuron disease, unspecified | ✓ |
| G12.20 | Motor neuron disease, unspecified | ✓ |
| G12.21 | Amyotrophic lateral sclerosis | ✓ |
| G12.21 | Amyotrophic lateral sclerosis | ✓ |
| G12.22 | Progressive bulbar palsy | ✓ |
| G12.22 | Progressive bulbar palsy | ✓ |
| G12.23 | Primary lateral sclerosis | ✓ |
| G12.23 | Primary lateral sclerosis | ✓ |
| G12.24 | Familial motor neuron disease | ✓ |
| G12.24 | Familial motor neuron disease | ✓ |
| G12.25 | Progressive spinal muscle atrophy | ✓ |
| G12.25 | Progressive spinal muscle atrophy | ✓ |
| G12.29 | Other motor neuron disease | ✓ |
| G12.29 | Other motor neuron disease | ✓ |
Frequently asked questions
What is ICD-10-CM code G12?
G12 is an ICD-10-CM category covering Spinal muscular atrophy and related syndromes. It contains 24 more specific diagnosis codes, 22 of which are billable.
Is G12 a billable code?
No — G12 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example G12.0 — Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]). 22 of the 24 codes under G12 are billable.
What codes fall under G12?
G12 includes G12.0, G12.0, G12.1, G12.1, G12.2, plus 19 more. See the full list with descriptions and billable status above.
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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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