ICD-10 Code F10.921 – Alcohol use, unspecified with intoxication delirium (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F10.921 – Alcohol use, unspecified with intoxication delirium
What it is
F10.921 identifies alcohol use, unspecified when intoxication is complicated by delirium. Use it when the record documents alcohol-related intoxication with acute confusion or disturbed awareness.
Clinical signs
Clinical features may include disorientation, impaired attention, altered level of consciousness, and fluctuating confusion during intoxication. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents alcohol intoxication with delirium and does not specify a more precise alcohol-related diagnosis. It fits encounters where the delirium is attributed to current alcohol use rather than another cause. Check documentation if another substance, withdrawal state, or medical condition is also involved.
Do not use for
Do not use it for uncomplicated alcohol intoxication without delirium, or for alcohol withdrawal delirium. Also avoid it when delirium is due to another medical or substance-related cause.
Coding tip
Confirm the provider links delirium directly to alcohol intoxication before assigning F10.921.