F11.9

Non-billable

Opioid use, unspecified

F11.9 is the ICD-10-CM code for Opioid use, unspecified. It is a non-billable category code — use a more specific child code such as F11.90 for billing.

Status
Header (non-billable)
Chapter
F01-F99
Parent
F11
Subcodes
8
Edition
FY2026

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

Excludes1 — not coded here

  • opioid abuse (F11.1-)
  • opioid dependence (F11.2-)

Frequently asked questions

What is ICD-10 code F11.9?
F11.9 is the ICD-10-CM code for "Opioid use, unspecified". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F11.9 a billable code?
No — F11.9 is a non-billable header code. Use a more specific child code (such as F11.90) for billing.
What are the subcodes of F11.9?
F11.9 has 8 more specific child codes, including F11.90, F11.91, F11.92.
What is excluded from F11.9?
Excludes1 (not coded here): opioid abuse (F11.1-); opioid dependence (F11.2-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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