F39 — Unspecified mood [affective] disorder
F39 is a billable, specific ICD-10-CM code for unspecified mood [affective] disorder. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Affective psychosis NOS
Risk adjustment
F39 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
F39 is named in 10 Medicare coverage policies — 9 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
- A56937Billing and Coding: Psychiatry and Psychology Services
How F39 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 F39.
- Disorder›mood
- Episode›affective, mixed
- Disorder›mood›recurrent
Questions about F39
- Is F39 a billable ICD-10-CM code?
- Yes. F39 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F39 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mood [affective] disorders (F30-F39).