ICD-10 Code F13.231 – Sedative, hypnotic or anxiolytic dependence with withdrawal delirium (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F13.231 – Sedative, hypnotic or anxiolytic dependence with withdrawal delirium
What it is
This code identifies dependence on a sedative, hypnotic, or anxiolytic drug with delirium occurring during withdrawal. It reflects both the substance use disorder and the acute confusion state tied to stopping or reducing the drug.
Clinical signs
Typical findings include disturbed attention, disorientation, fluctuating awareness, and changes in cognition or behavior. Clinical features vary; refer to documentation for evidence of withdrawal delirium linked to the specific substance.
When to use this code
Use this code when the record clearly documents dependence plus withdrawal delirium from a sedative, hypnotic, or anxiolytic. It is appropriate when the delirium is attributed to withdrawal rather than another medical or psychiatric cause. Check documentation for the specific drug involved.
Do not use for
Do not use this code for simple dependence without delirium, or for withdrawal states without delirium. Do not apply it when delirium is caused by another condition or when documentation does not support the substance relationship.
Coding tip
Confirm both dependence and withdrawal delirium are documented before assigning F13.231.