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ICD-10-CM category F31: Bipolar disorder

Category F31 is a heading in chapter 5 (Mental, Behavioral and Neurodevelopmental disorders (F01-F99)), section Mood [affective] disorders (F30-F39). It is not billable; report one of the 28 complete codes below.

Notes that apply to every F31 code

Includes
  • bipolar I disorder
  • bipolar type I disorder
  • manic-depressive illness
  • manic-depressive psychosis
  • manic-depressive reaction
  • seasonal bipolar disorder
Excludes1 (never coded together)
  • bipolar disorder, single manic episode (F30.-)
  • major depressive disorder, single episode (F32.-)
  • major depressive disorder, recurrent (F33.-)
Excludes2 (not part of this condition, may be coded together)
  • cyclothymia (F34.0)

Billable codes in F31

Billable FY2027 ICD-10-CM codes in category F31
CodeDescription
F31.0Bipolar disorder, current episode hypomanic
F31.10Bipolar disorder, current episode manic without psychotic features, unspecified
F31.11Bipolar disorder, current episode manic without psychotic features, mild
F31.12Bipolar disorder, current episode manic without psychotic features, moderate
F31.13Bipolar disorder, current episode manic without psychotic features, severe
F31.2Bipolar disorder, current episode manic severe with psychotic features
F31.30Bipolar disorder, current episode depressed, mild or moderate severity, unspecified
F31.31Bipolar disorder, current episode depressed, mild
F31.32Bipolar disorder, current episode depressed, moderate
F31.4Bipolar disorder, current episode depressed, severe, without psychotic features
F31.5Bipolar disorder, current episode depressed, severe, with psychotic features
F31.60Bipolar disorder, current episode mixed, unspecified
F31.61Bipolar disorder, current episode mixed, mild
F31.62Bipolar disorder, current episode mixed, moderate
F31.63Bipolar disorder, current episode mixed, severe, without psychotic features
F31.64Bipolar disorder, current episode mixed, severe, with psychotic features
F31.70Bipolar disorder, currently in remission, most recent episode unspecified
F31.71Bipolar disorder, in partial remission, most recent episode hypomanic
F31.72Bipolar disorder, in full remission, most recent episode hypomanic
F31.73Bipolar disorder, in partial remission, most recent episode manic
F31.74Bipolar disorder, in full remission, most recent episode manic
F31.75Bipolar disorder, in partial remission, most recent episode depressed
F31.76Bipolar disorder, in full remission, most recent episode depressed
F31.77Bipolar disorder, in partial remission, most recent episode mixed
F31.78Bipolar disorder, in full remission, most recent episode mixed
F31.81Bipolar II disorder
F31.89Other bipolar disorder
F31.9Bipolar disorder, unspecified

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.