2021 ICD-10-CM Code G12.8

Other spinal muscular atrophies and related syndromes

Version 2021

Valid for Submission

G12.8 is a billable diagnosis code used to specify a medical diagnosis of other spinal muscular atrophies and related syndromes. The code G12.8 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code G12.8 might also be used to specify conditions or terms like bulbospinal neuronopathy, facioscapulohumeral spinal muscular atrophy, facioscapulohumeral spinal muscular atrophy with sensory loss or oculopharyngeal spinal muscular atrophy.

ICD-10:G12.8
Short Description:Other spinal muscular atrophies and related syndromes
Long Description:Other spinal muscular atrophies and related syndromes

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G12.8 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert G12.8 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code G12.8 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Spinal Muscular Atrophy

Also called: SMA

Spinal muscular atrophy (SMA) is a genetic disease that attacks nerve cells, called motor neurons, in the spinal cord. These cells communicate with your voluntary muscles - the ones you can control, like in your arms and legs. As the neurons die, the muscles weaken. This can affect walking, crawling, breathing, swallowing, and head and neck control.

SMA runs in families. Parents usually have no symptoms, but still carry the gene. Genetic counseling is important if the disease runs in your family.

There are many types of SMA. Some of them are fatal. Some people have a normal life expectancy. It depends on the type and how it affects breathing. There is no cure. Treatments help with symptoms and prevent complications. They may include machines to help with breathing, nutritional support, physical therapy, and medicines.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)