2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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
Short Description
Spinal muscular atrophy and related syndromes
Same as the full description in the CMS dataset.
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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G12: its own notes plus those printed at Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G12Overview

What is the ICD-10 code for spinal muscular atrophy and related syndromes?

G12 is the ICD-10-CM category for spinal muscular atrophy and related syndromes, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.