ICD-10 Code F11.18 – Opioid abuse with other opioid-induced disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F11.18 – Opioid abuse with other opioid-induced disorder
What it is
Use this code when documentation shows opioid abuse plus another opioid-induced disorder that is not separately classified elsewhere. It identifies the combined clinical picture, not simple opioid use alone.
Clinical signs
Clinical features vary; refer to documentation. You may see opioid misuse with associated opioid-related mental, sleep, or other secondary effects described by the provider.
When to use this code
Assign F11.18 when the record clearly states opioid abuse and another opioid-induced disorder together. Use it when the provider links the additional disorder to opioid use and does not document a more specific code. Check documentation if the secondary disorder is named but not clearly opioid-induced.
Do not use for
Do not use this code for opioid dependence, uncomplicated opioid abuse, or opioid intoxication without abuse. Also avoid it when the other disorder is unrelated to opioid use or is coded more specifically elsewhere.
Coding tip
Look for explicit provider wording that connects the opioid abuse to the additional opioid-induced condition before assigning F11.18.