F31 vs F32.A
F31 (Bipolar disorder) compared with F32.A (Depression, unspecified), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. F31 carries an Excludes1 note covering F32.A: “major depressive disorder, single episode (F32.-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. F32.A carries an Excludes1 note covering F31: “bipolar disorder (F31.-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| F31Bipolar disorder | F32.ADepression, unspecified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) |
| Definition | Bipolar disorder is a non-billable ICD-10-CM category code (F31). | Depression, unspecified is a billable ICD-10-CM diagnosis code (F32.A). |
| Includes | bipolar I disorder bipolar type I disorder manic-depressive illness manic-depressive psychosis | single episode of agitated depression single episode of depressive reaction single episode of major depression single episode of psychogenic depression |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources