G12.0
✓ Billable
Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G12.0
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Nervous System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code G12.0?
ICD-10-CM code G12.0 represents Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]. It is a billable diagnosis code in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G12.0 billable?
Yes. G12.0 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is G12.0 in?
G12.0 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G12 category
G12
Spinal muscular atrophy and related syndromes
Non-billable
G12.1
Other inherited spinal muscular atrophy
Billable
G12.2
Motor neuron disease
Non-billable
G12.8
Other spinal muscular atrophies and related syndromes
Billable
G12.9
Spinal muscular atrophy, unspecified
Billable
G12.20
Motor neuron disease, unspecified
Billable
G12.21
Amyotrophic lateral sclerosis
Billable
G12.22
Progressive bulbar palsy
Billable
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