2026 ICD-10-CM Diagnosis Code G12Spinal muscular atrophy and related syndromes

ICD-10-CM Codes›G00–G99›G10-G14›G12

ICD-10-CM G12
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G12 is a non-billable ICD-10-CM category code for spinal muscular atrophy and related syndromes, so it cannot be submitted on claims. Use a more specific code from this category instead, such as G12.0, G12.1, G12.20, and G12.21.

Code Identity

ICD-10-CM Code
G12
Billable Status
No — Non-Billable Category
Code Describes
Spinal muscular atrophy and related syndromes
Chapter
G10-G14
Systemic atrophies primarily affecting the central nervous system

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG10-G14Systemic atrophies primarily affecting the central nervous system
CategoryG12Spinal muscular atrophy and related syndromes
This CodeG12Spinal muscular atrophy and related syndromes

Specific Coding for Spinal muscular atrophy and related syndromesOverview

Non-specific codes like G12 require more characters. Use one of these billable codes instead:

  • Use G12.0 for Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]

  • Use G12.1 for Other inherited spinal muscular atrophy

  • G12.2 for Motor neuron disease

  • Use G12.20 for Motor neuron disease, unspecified

  • Use G12.21 for Amyotrophic lateral sclerosis

  • Use G12.22 for Progressive bulbar palsy

  • Use G12.23 for Primary lateral sclerosis

  • Use G12.24 for Familial motor neuron disease

  • Use G12.25 for Progressive spinal muscle atrophy

  • Use G12.29 for Other motor neuron disease

  • Use G12.8 for Other spinal muscular atrophies and related syndromes

  • Use G12.9 for Spinal muscular atrophy, unspecified

Patient EducationClinical

Spinal Muscular Atrophy

Spinal muscular atrophy (SMA) is a group of genetic diseases that damages and kills motor neurons. Motor neurons are a type of nerve cell in the spinal cord and lower part of the brain. They control movement in your arms, legs, face, chest, throat, and tongue.

The full article covers:

  • What is spinal muscular atrophy (SMA)?
  • What are the types of spinal muscular atrophy (SMA) and what are their symptoms?
  • What causes spinal muscular atrophy (SMA)?
  • How is spinal muscular atrophy (SMA) diagnosed?
  • What are the treatments for spinal muscular atrophy (SMA)?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G12Overview

Is G12 (Spinal muscular atrophy and related syndromes) a billable code?

No. This is a category header that groups the codes for spinal muscular atrophy and related syndromes, and headers cannot be submitted on claims. Claims for spinal muscular atrophy and related syndromes need a more specific code from this category, such as G12.0, G12.1, and G12.20.