ICD-10-CM 2027
ICD-10 code for alcoholic encephalopathy
From the official ICD-10-CM alphabetic index entry “Encephalopathy (acute) › alcoholic”. Page updated September 29, 2026.
About coding alcoholic encephalopathy
The ICD-10-CM code for alcoholic encephalopathy is G31.2 (Degeneration of nervous system due to alcohol).
Within G31 (other degenerative diseases of nervous system, not elsewhere classified), G31.2 is specifically for degeneration of nervous system due to alcohol. Related codes cover frontotemporal dementia (G31.0), senile degeneration of brain, not elsewhere classified (G31.1), other specified degenerative diseases of nervous system (G31.8) and degenerative disease of nervous system, unspecified (G31.9).
Use an additional 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-), dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3), dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2), dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about alcoholic encephalopathy ICD-10 codes
What is the ICD-10 code for alcoholic encephalopathy?
- G31.2 — Degeneration of nervous system due to alcohol.
Is G31.2 billable?
- Yes. G31.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G31.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G31.2 as a principal diagnosis.
Is G31.2 a CC or MCC?
- No. G31.2 is neither a CC nor an MCC under MS-DRG v44.0.