G31.83
✓ Billable
Neurocognitive disorder with Lewy bodies
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G31.83
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.
Frequently asked questions
What is ICD-10 code G31.83?
ICD-10-CM code G31.83 represents Neurocognitive disorder with Lewy bodies. It is a billable diagnosis code in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G31.83 billable?
Yes. G31.83 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is G31.83 in?
G31.83 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G31 category
G31
Other degenerative diseases of nervous system, not elsewhere classified
Non-billable
G31.0
Frontotemporal dementia
Non-billable
G31.1
Senile degeneration of brain, not elsewhere classified
Billable
G31.2
Degeneration of nervous system due to alcohol
Billable
G31.8
Other specified degenerative diseases of nervous system
Non-billable
G31.9
Degenerative disease of nervous system, unspecified
Billable
G31.01
Pick's disease
Billable
G31.09
Other frontotemporal neurocognitive disorder
Billable
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →