F31 Bipolar disorder

Not billable (header)Chapter 5

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

F31.0 Bipolar disorder, current episode hypomanic
F31.1 Bipolar disorder, current episode manic without psychotic featuresHeader
F31.2 Bipolar disorder, current episode manic severe with psychotic features
F31.3 Bipolar disorder, current episode depressed, mild or moderate severityHeader
F31.4 Bipolar disorder, current episode depressed, severe, without psychotic features
F31.5 Bipolar disorder, current episode depressed, severe, with psychotic features
F31.6 Bipolar disorder, current episode mixedHeader
F31.7 Bipolar disorder, currently in remissionHeader
F31.8 Other bipolar disordersHeader
F31.9 Bipolar disorder, unspecified

Instructional notes

Chapter 5

Excludes2Not included here: the patient may have both; report both when both are present.

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

disorders of psychological development

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

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

Excludes2Not included here: the patient may have both; report both when both are present.

cyclothymia (F34.0)

Includes

bipolar I disorder
bipolar type I disorder
manic-depressive illness
manic-depressive psychosis
manic-depressive reaction
seasonal bipolar disorder

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F30-F39 Mood [affective] disorders (F30-F39)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.