G10
✓ Billable
Huntington's disease
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G10
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Nervous System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Also known as
- Huntington's chorea
- Huntington's dementia
Use 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-)
Frequently asked questions
What is ICD-10 code G10?
ICD-10-CM code G10 represents Huntington's disease. It is a billable diagnosis code in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G10 billable?
Yes. G10 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is G10 in?
G10 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
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