Diagnosis Code F31
Information for Medical Professionals
References found for the code F31 in the Index of Diseases and Injuries:
- Includes Notes: Includes Notes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- manic-depressive illness
- manic-depressive psychosis
- manic-depressive reaction
- Type 1 Excludes Notes: Type 1 Excludes Notes
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 Notes: "And"
The word “and” should be interpreted to mean either “and” or “or” when it appears in a title.
- cyclothymia (F34.0)
Information for Patients
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