G10 ICD-10-CM Code: Huntington's disease
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
G10Huntington's disease
ICD-10-CM diagnosis code · United States clinical modification
Where G10 sits
- 1
Chapter 6
Diseases of the nervous system (G00-G99)
- 2
Section
Systemic atrophies primarily affecting the central nervous system (G10-G14)
- 3
Category G10
Huntington's disease
- 4
Code G10
Huntington's disease
Notes for this code
Inclusion terms
- Huntington's chorea
- Huntington's dementia
Code first
No “code first” instruction is listed for G10.
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-)
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for G10.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for G10.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code G10 mean?
G10 is the FY 2027 U.S. ICD-10-CM code for “Huntington's disease.”
Is G10 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, G10 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is G10 located in ICD-10-CM?
G10 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Systemic atrophies primarily affecting the central nervous system (G10-G14) (G10–G14), under category G10, Huntington's disease.
What coding notes are listed for G10?
Its listed inclusion terms are Huntington's chorea; Huntington's dementia. No code-first instruction is listed. Additional-code instructions: 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-). No Excludes1 note is listed. No Excludes2 note is listed.