F12.99 — Cannabis use, unspecified with unspecified cannabis-induced disorder
F12.99 is a billable, specific ICD-10-CM code for cannabis use, unspecified with unspecified cannabis-induced disorder. It is valid for submission on a claim.
Risk adjustment
F12.99 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
F12.99 is named in 10 Medicare coverage policies — 8 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A59718Billing and Coding: Opioid Treatment Programsnot covered
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
- A56756Billing and Coding: Home Health - Psychiatric Care
How F12.99 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F12.99.
- Use›cannabis›with›unspecified disorder
Related codes at this level
Codes that share F12.9. If F12.99 is not quite right, the correct code is usually one of these.
- F12.90Cannabis use, unspecified, uncomplicated
- F12.91Cannabis use, unspecified, in remission
- F12.92Cannabis use, unspecified with intoxication
- F12.93Cannabis use, unspecified with withdrawal
- F12.95Cannabis use, unspecified with psychotic disorder
- F12.98Cannabis use, unspecified with other cannabis-induced disorder
Questions about F12.99
- Is F12.99 a billable ICD-10-CM code?
- Yes. F12.99 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F12.99 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mental and behavioral disorders due to psychoactive substance use (F10-F19).