ICD-10-CM Code F31

Bipolar disorder

Version 2021 Non-Billable Code

Not Valid for Submission

F31 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of bipolar disorder. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

Short Description:Bipolar disorder
Long Description:Bipolar disorder

Consider the following ICD-10 codes with a higher level of specificity:

  • F31.0 - ... current episode hypomanic
  • F31.1 - ... current episode manic without psychotic features
  • F31.10 - ... current episode manic without psychotic features, unspecified
  • F31.11 - ... current episode manic without psychotic features, mild
  • F31.12 - ... current episode manic without psychotic features, moderate
  • F31.13 - ... current episode manic without psychotic features, severe
  • F31.2 - ... current episode manic severe with psychotic features
  • F31.3 - ... current episode depressed, mild or moderate severity
  • F31.30 - ... current episode depressed, mild or moderate severity, unspecified
  • F31.31 - ... current episode depressed, mild
  • F31.32 - ... current episode depressed, moderate
  • F31.4 - ... current episode depressed, severe, without psychotic features
  • F31.5 - ... current episode depressed, severe, with psychotic features
  • F31.6 - ... current episode mixed
  • F31.60 - ... current episode mixed, unspecified
  • F31.61 - ... current episode mixed, mild
  • F31.62 - ... current episode mixed, moderate
  • F31.63 - ... current episode mixed, severe, without psychotic features
  • F31.64 - ... current episode mixed, severe, with psychotic features
  • F31.7 - ... currently in remission
  • F31.70 - ... currently in remission, most recent episode unspecified
  • F31.71 - ... in partial remission, most recent episode hypomanic
  • F31.72 - ... in full remission, most recent episode hypomanic
  • F31.73 - ... in partial remission, most recent episode manic
  • F31.74 - ... in full remission, most recent episode manic
  • F31.75 - ... in partial remission, most recent episode depressed
  • F31.76 - ... in full remission, most recent episode depressed
  • F31.77 - ... in partial remission, most recent episode mixed
  • F31.78 - ... in full remission, most recent episode mixed
  • F31.8 - Other bipolar disorders
  • F31.81 - Bipolar II disorder
  • F31.89 - Other bipolar disorder
  • F31.9 - ... unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code F31:


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

Type 1 Excludes

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

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.

Clinical Information

  • BIPOLAR DISORDER-. a major affective disorder marked by severe mood swings manic or major depressive episodes and a tendency to remission and recurrence.

Code Classification

  • Mental and behavioural disorders (F00–F99)
    • Mood [affective] disorders (F30-F39)
      • Bipolar disorder (F31)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients

Bipolar Disorder

Also called: Manic-depressive illness

Bipolar disorder is a serious mental illness. People who have it go through unusual mood changes. They go from very happy, "up," and active to very sad and hopeless, "down," and inactive, and then back again. They often have normal moods in between. The up feeling is called mania. The down feeling is depression.

The causes of bipolar disorder aren't always clear. It runs in families. Abnormal brain structure and function may also play a role.

Bipolar disorder often starts in a person's late teen or early adult years. But children and adults can have bipolar disorder too. The illness usually lasts a lifetime.

If you think you may have it, tell your health care provider. A medical checkup can rule out other illnesses that might cause your mood changes.

If not treated, bipolar disorder can lead to damaged relationships, poor job or school performance, and even suicide. However, there are effective treatments to control symptoms: medicine and talk therapy. A combination usually works best.

NIH: National Institute of Mental Health

  • Bipolar disorder (Medical Encyclopedia)

[Learn More]

Bipolar disorder Bipolar disorder is a mental health condition that causes extreme shifts in mood, energy, and behavior. This disorder most often appears in late adolescence or early adulthood, although symptoms can begin at any time of life.People with bipolar disorder experience both dramatic "highs," called manic episodes, and "lows," called depressive episodes. These episodes can last from hours to weeks, and many people have no symptoms between episodes. Manic episodes are characterized by increased energy and activity, irritability, restlessness, an inability to sleep, and reckless behavior. Depressive episodes are marked by low energy and activity, a feeling of hopelessness, and an inability to perform everyday tasks. People with bipolar disorder often have repeated thoughts of death and suicide, and they have a much greater risk of dying by suicide than the general population.Manic and depressive episodes can include psychotic symptoms, such as false perceptions (hallucinations) or strongly held false beliefs (delusions). Mixed episodes, which have features of manic and depressive episodes at the same time, also occur in some affected individuals.Bipolar disorder often occurs with other mental health conditions, including anxiety disorders (such as panic attacks), behavioral disorders (such as attention-deficit/hyperactivity disorder), and substance abuse.
[Learn More]