Huntington's disease (G10) ICD-10-CM
The G10 code range covers huntington's disease with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Huntington's chorea
- Huntington's dementia
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code, if applicable, to identify:
- dementia with anxiety F02.84 F02.A4 F02.B4 F02.C4
- dementia with behavioral disturbance F02.81 F02.A1 F02.B1 F02.C1
- dementia with mood disturbance F02.83 F02.A3 F02.B3 F02.C3
- dementia with psychotic disturbance F02.82 F02.A2 F02.B2 F02.C2
- dementia without behavioral disturbance F02.80 F02.A0 F02.B0 F02.C0
- mild neurocognitive disorder due to known physiological condition F06.7
Codes in the G10 Range 1 codes · 1 billable
- G10 Huntington's disease
About the G10 Code Range
ICD-10 code G10 is used specifically for diagnosing and documenting Huntington's disease, a genetic neurological disorder characterized by progressive movement, cognitive, and psychiatric symptoms.
This code covers all variations of Huntington's disease, including Juvenile onset and Late onset forms, as well as related conditions commonly referred to as Huntington's chorea or dementia due to Huntington chorea. It also includes atypical presentations like the akinetic-rigid type and Huntington disease-like syndromes, such as Huntington disease-like 2. Recognizing these synonyms helps clarify coding when faced with descriptors like dementia due to genetic disease or altered behavior linked to Huntington’s dementia. Medical coders should apply G10 when the patient's diagnosis reflects any hereditary nervous system disorder matching these terms, ensuring precise capture of this specific condition in health records and billing.
Questions About This Page
How many billable codes are in the G10 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the G10 range classify?
The range classifies huntington's disease. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
