Bipolar disorder (F31) ICD-10-CM
The F31 code range covers bipolar disorder with 34 ICD-10-CM diagnosis codes. 28 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- bipolar I disorder
- bipolar type I disorder
- manic-depressive illness
- manic-depressive psychosis
- manic-depressive reaction
- seasonal bipolar disorder
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- bipolar disorder, single manic episode F30
- major depressive disorder, single episode F32
- major depressive disorder, recurrent F33
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- cyclothymia F34.0
Codes in the F31 Range 34 codes · 28 billable
- F31 Bipolar disorderNon-billable
- F31.0 Bipolar disorder, current episode hypomanic
- F31.1 Bipolar disorder, current episode manic without psychotic featuresNon-billable
- F31.10 Bipolar disorder, current episode manic without psychotic features, unspecified
- F31.11 Bipolar disorder, current episode manic without psychotic features, mild
- F31.12 Bipolar disorder, current episode manic without psychotic features, moderate
- F31.13 Bipolar disorder, current episode manic without psychotic features, severe
- F31.2 Bipolar disorder, current episode manic severe with psychotic features
- F31.3 Bipolar disorder, current episode depressed, mild or moderate severityNon-billable
- F31.30 Bipolar disorder, current episode depressed, mild or moderate severity, unspecified
- F31.31 Bipolar disorder, current episode depressed, mild
- F31.32 Bipolar disorder, current episode depressed, moderate
- 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 mixedNon-billable
- F31.60 Bipolar disorder, current episode mixed, unspecified
- F31.61 Bipolar disorder, current episode mixed, mild
- F31.62 Bipolar disorder, current episode mixed, moderate
- F31.63 Bipolar disorder, current episode mixed, severe, without psychotic features
- F31.64 Bipolar disorder, current episode mixed, severe, with psychotic features
- F31.7 Bipolar disorder, currently in remissionNon-billable
- F31.70 Bipolar disorder, currently in remission, most recent episode unspecified
- F31.71 Bipolar disorder, in partial remission, most recent episode hypomanic
- F31.72 Bipolar disorder, in full remission, most recent episode hypomanic
- F31.73 Bipolar disorder, in partial remission, most recent episode manic
- F31.74 Bipolar disorder, in full remission, most recent episode manic
- F31.75 Bipolar disorder, in partial remission, most recent episode depressed
- F31.76 Bipolar disorder, in full remission, most recent episode depressed
- F31.77 Bipolar disorder, in partial remission, most recent episode mixed
- F31.78 Bipolar disorder, in full remission, most recent episode mixed
- F31.8 Other bipolar disordersNon-billable
- F31.81 Bipolar II disorder
- F31.89 Other bipolar disorder
- F31.9 Bipolar disorder, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the F31 range.
Bipolar Disorder
A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence.
Bipolar II Disorder
A bipolar disorder in which at least one episode of major depression alternates with at least one episode of hypomania. In contrast to bipolar I disorder, affected individuals do not experience any manic episodes.
About the F31 Code Range
Bipolar disorder involves severe mood swings, including manic or major depressive episodes, with a tendency toward remission and recurrence.
F31 separates current episodes by type: hypomanic, manic, depressed, or mixed. Manic, depressed, and mixed episodes split further by severity or the presence of psychotic features.
Remission codes distinguish partial from full remission and identify the most recent episode when specified. Other bipolar disorders include F31.81, bipolar II disorder. F31.9 is bipolar disorder, unspecified.
Questions About This Page
How many billable codes are in the F31 range?
Of the 34 codes in this range, 28 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the F31 range classify?
The range classifies bipolar disorder. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
