ICD-10 Code F11.988 – Opioid use, unspecified with other opioid-induced disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F11.988 – Opioid use, unspecified with other opioid-induced disorder
What it is
This code identifies opioid use when the record also documents another opioid-induced disorder, but the exact type is not specified. Use it when the chart supports opioid-related harm without naming a more specific opioid-induced condition.
Clinical signs
Clinical features vary; refer to documentation. You may see opioid use with mental, behavioral, or physical effects attributed to opioids, but the specific disorder must be documented to support coding.
When to use this code
Use this code when the provider documents opioid use and an additional opioid-induced disorder, yet does not identify the disorder more precisely. It may apply in encounters where the note says “other opioid-induced disorder” or gives an equivalent unspecified opioid-related condition. Code only what is clearly documented.
Do not use for
Do not use this code if the record identifies a more specific opioid-induced disorder, such as intoxication, dependence, or withdrawal. Also avoid it when opioid use is mentioned without any documented opioid-induced disorder.
Coding tip
Check the full note for the exact opioid-related disorder and code the most specific documented diagnosis.