MCMedicalCodingSoftware
F31.3

F31.3: Bipolar 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.

Excludes1 inherited from the categories above F31.3

A category’s note binds every code beneath it.

Written on F31: Bipolar disorder

  • bipolar disorder, single manic episode (F30.-)
  • major depressive disorder, single episode (F32.-)
  • major depressive disorder, recurrent (F33.-)

Excludes2 inherited from the categories above F31.3

Not part of this code, but both may be coded when both are present.

Written on F31: Bipolar disorder

Other codes that can never be billed with F31.3

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • F30Manic episode
  • F32Depressive episode
  • F33Major depressive disorder, recurrent
  • R40.1Stupor

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead F31.3

3 child codes. Green means billable.

Other codes under F31

ICD-10-CMFY2027· effective October 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.