MCMCB Pro
F31.3

F31.3Bipolar disorder, current episode depressed, mild or moderate severity

Non-billable headerICD-10-CM

F31.3 is a non-billable header ICD-10-CM code for bipolar disorder, current episode depressed, mild or moderate severity. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

F31.3 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.

Code to one of these instead F31.3

3 child codes. Green means billable.

Related codes at this level

Codes that share F31. If F31.3 is not quite right, the correct code is usually one of these.

Questions about F31.3

Is F31.3 a billable ICD-10-CM code?
No. F31.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does F31.3 sit in the tabular list?
Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mood [affective] disorders (F30-F39).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.