G31.1

Billable

Senile degeneration of brain, not elsewhere classified

G31.1 is the ICD-10-CM code for Senile degeneration of brain, not elsewhere classified. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
G00-G99
Parent
G31
Edition
FY2026

G00-G99 Diseases of the nervous system

Excludes1 — not coded here

  • Alzheimer's disease (G30.-)
  • senility NOS (R41.81)

Frequently asked questions

What is ICD-10 code G31.1?
G31.1 is the ICD-10-CM code for "Senile degeneration of brain, not elsewhere classified". It falls under G00-G99 Diseases of the nervous system.
Is G31.1 a billable code?
Yes — G31.1 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from G31.1?
Excludes1 (not coded here): Alzheimer's disease (G30.-); senility NOS (R41.81).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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