F11.9 – Opioid use, unspecified
ICD-10-CM 2027 diagnosis code · Mental and behavioral disorders due to psychoactive substance use
ICD-10-CM code
F11.9
- Code
F11.9(claims format:F119)- Description
- Opioid use, unspecified
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
- Block
- F10-F19 Mental and behavioral disorders due to psychoactive substance use
- Parent codes
- F11
Billable codes under F11.9
F11.9 is a header code and cannot be used on claims. Choose the most specific code:
- F11.90 – Opioid use, unspecified, uncomplicatedBillable
- F11.91 – Opioid use, unspecified, in remissionBillable
- F11.92 – Opioid use, unspecified with intoxicationHeader (more codes below)
- F11.93 – Opioid use, unspecified with withdrawalBillable
- F11.94 – Opioid use, unspecified with opioid-induced mood disorderBillable
- F11.95 – Opioid use, unspecified with opioid-induced psychotic disorderHeader (more codes below)
- F11.98 – Opioid use, unspecified with other specified opioid-induced disorderHeader (more codes below)
- F11.99 – Opioid use, unspecified with unspecified opioid-induced disorderBillable
Notes for F11.9
Related codes in F11
- F11.1 – Opioid abuseHeader
- F11.2 – Opioid dependenceHeader
Frequently asked questions
What is ICD-10 code F11.9?
F11.9 is the ICD-10-CM code for opioid use, unspecified, in the block F10-F19 (Mental and behavioral disorders due to psychoactive substance use).
Is F11.9 a billable code?
No. F11.9 is a header code with more specific child codes; report one of the billable codes listed above.
What category does F11.9 belong to?
It belongs to category F11 – Opioid related disorders.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.