F12.91 — Cannabis use, unspecified, in remission
F12.91 is a billable, specific ICD-10-CM code for cannabis use, unspecified, in remission. It is valid for submission on a claim.
Excludes1 inherited from the categories above F12.91
These are not written on F12.91, but they bind it: a note on a category applies to every code beneath it. Billing F12.91 with anything listed here is a denial.
Risk adjustment
F12.91 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
F12.91 is named in 12 Medicare coverage policies — 9 listing it as supporting medical necessity, and 3 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
- A56562Billing and Coding: Health and Behavior Assessment/Interventionnot covered
- A59718Billing and Coding: Opioid Treatment Programsnot covered
- A56614Billing and Coding: Psychiatric Inpatient Hospitalization
How F12.91 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 F12.91.
- Use›cannabis›in remission
Code history
F12.91 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share F12.9. If F12.91 is not quite right, the correct code is usually one of these.
- F12.90Cannabis use, unspecified, uncomplicated
- 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
- F12.99Cannabis use, unspecified with unspecified cannabis-induced disorder
Questions about F12.91
- Is F12.91 a billable ICD-10-CM code?
- Yes. F12.91 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F12.91 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).
- What cannot be coded together with F12.91?
- F12.91 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above F12.91 (F12.9) and apply to it just the same.