2021 ICD-10-CM Code G11

Hereditary ataxia

Version 2021
Non-Billable Code

Not Valid for Submission

G11 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of hereditary ataxia. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:G11
Short Description:Hereditary ataxia
Long Description:Hereditary ataxia

Code Classification

Specific Coding for Hereditary ataxia

Header codes like G11 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for hereditary ataxia:

  • G11.0 - Congenital nonprogressive ataxia
  • G11.1 - Early-onset cerebellar ataxia
  • G11.10 - Early-onset cerebellar ataxia, unspecified
  • G11.11 - Friedreich ataxia
  • G11.19 - Other early-onset cerebellar ataxia
  • G11.2 - Late-onset cerebellar ataxia
  • G11.3 - Cerebellar ataxia with defective DNA repair
  • G11.4 - Hereditary spastic paraplegia
  • G11.8 - Other hereditary ataxias
  • G11.9 - ... unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G11:


Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Clinical Information

Information for Patients


Cerebellar Disorders

When you play the piano or hit a tennis ball you are activating the cerebellum. The cerebellum is the area of the brain that controls coordination and balance. Problems with the cerebellum include

Treatment of cerebellar disorders depends on the cause. In some cases, there is no cure but treatment may help with symptoms.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Movement Disorders

Movement disorders are neurologic conditions that cause problems with movement, such as

There are many different movement disorders. Some of the more common types include

Causes of movement disorders include

Treatment varies by disorder. Medicines can cure some disorders. Others get better when an underlying disease is treated. Often, however, there is no cure. In that case, the goal of treatment is to improve symptoms and relieve pain.


[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)