F34.9 — Persistent mood [affective] disorder, unspecified
F34.9 is a billable, specific ICD-10-CM code for persistent mood [affective] disorder, unspecified. It is valid for submission on a claim.
Risk adjustment
F34.9 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
F34.9 is named in 6 Medicare coverage policies — 5 listing it as supporting medical necessity, and 1 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
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
- A56756Billing and Coding: Home Health - Psychiatric Care
- A57130Billing and Coding: Psychiatric Codes
How F34.9 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 F34.9.
- Disorder›emotional(persistent)
- Disorder›mood›persistent
- Disorder›persistent›affective(mood)
Related codes at this level
Codes that share F34. If F34.9 is not quite right, the correct code is usually one of these.
Questions about F34.9
- Is F34.9 a billable ICD-10-CM code?
- Yes. F34.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F34.9 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mood [affective] disorders (F30-F39).