G31.2 Degeneration of nervous system due to alcohol
The ICD-10-CM code for Degeneration of nervous system due to alcohol is G31.2 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- G30-G32: Other degenerative diseases of the nervous system (G30-G32)
- Category G31
- 17 codes (14 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to G31.2:
- Encephalopathy (acute) › alcoholic
- Degeneration, degenerative › nervous system › alcoholic
- Dysfunction › autonomic › due to alcohol
- Ataxia, ataxy, ataxic › cerebellar (hereditary) › alcoholic
- Degeneration, degenerative › cortical (cerebellar) (parenchymatous) › alcoholic
- Degeneration, degenerative › cerebellar NOS › alcoholic
- Degeneration, degenerative › brain (cortical) (progressive) › alcoholic
- Ataxia, ataxy, ataxic › cerebellar (hereditary) › in › alcoholism
Inclusion Terms
- Alcoholic cerebellar ataxia
- Alcoholic cerebellar degeneration
- Alcoholic cerebral degeneration
- Alcoholic encephalopathy
- Dysfunction of the autonomic nervous system due to alcohol
U.S. Hospital Utilization
- An estimated 12,260 U.S. inpatient stays in 2023 included G31.2 among the documented diagnoses.
- 1,285 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Dominant/nondominant side (TOC entry)a. Dominant/nondominant side ................................................................................................. 45
Pain - Category G89 (TOC entry)b. Pain - Category G89.............................................................................................................. 45
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026