G31.2 vs G93.4
G31.2 (Degeneration of nervous system due to alcohol) compared with G93.4 (Other and unspecified encephalopathy), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. G93.4 carries an Excludes2 note covering G31.2: “alcoholic encephalopathy (G31.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| G31.2Degeneration of nervous system due to alcohol | G93.4Other and unspecified encephalopathy | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Degeneration of nervous system due to alcohol is a billable ICD-10-CM diagnosis code (G31.2). | Other and unspecified encephalopathy is a non-billable ICD-10-CM category code (G93.4). |
| Includes | Alcoholic cerebellar ataxia Alcoholic cerebellar degeneration Alcoholic cerebral degeneration Alcoholic encephalopathy | — |
| Use additional code | code, if applicable, for codes G31.0-G31.83, G31.85-G31.9, 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-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources