G31.89
✓ Billable
Other specified degenerative diseases of nervous system
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G31.89
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 G31.89?
ICD-10-CM code G31.89 represents Other specified degenerative diseases of nervous system. It is a billable diagnosis code in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G31.89 billable?
Yes. G31.89 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is G31.89 in?
G31.89 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G31 category
G31
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G31.1
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G31.2
Degeneration of nervous system due to alcohol
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G31.8
Other specified degenerative diseases of nervous system
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G31.9
Degenerative disease of nervous system, unspecified
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G31.01
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G31.09
Other frontotemporal neurocognitive disorder
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