ICD-10-CM FY2027 diagnosis code

F31.31: Bipolar disorder, current episode depressed, mild

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

F31.31 is a billable ICD-10-CM diagnosis code for bipolar disorder, current episode depressed, mild. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

F31.31 questions

Is F31.31 a billable code?

Yes. F31.31 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does F31.31 mean?

F31.31 is the ICD-10-CM code for Bipolar disorder, current episode depressed, mild. It is in chapter 5, Mental, behavioral and neurodevelopmental disorders (F01-F99).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.