F12.921 — Cannabis use, unspecified with intoxication delirium
F12.921 is a billable, specific ICD-10-CM code for cannabis use, unspecified with intoxication delirium. It is valid for submission on a claim.
Risk adjustment
F12.921 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
F12.921 is named in 15 Medicare coverage policies — 12 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 F12.921 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 F12.921.
- Delirium, delirious›due to›cannabis intoxication(acute)
- Use›cannabis›with›intoxication›with›delirium
Related codes at this level
Codes that share F12.92. If F12.921 is not quite right, the correct code is usually one of these.
Questions about F12.921
- Is F12.921 a billable ICD-10-CM code?
- Yes. F12.921 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F12.921 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).