F31.62 Diagnosis code: Bipolar disorder, current episode mixed, moderate
Bipolar disorder is a condition recognized in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). It marked by recurring episodes of extreme mood changes that impact a person's energy levels, emotions, and daily functioning.
The ICD-10-CM code F31.62 is used to classify bipolar disorder, where the current episode is mixed and of moderate severity. This condition is characterized by the presence of both manic and depressive symptoms occurring simultaneously or in rapid alternation during the same mood episode.
In this case, the episode is moderate, meaning the patient’s symptoms are more intense than mild but not yet severe enough to meet criteria for psychotic features or necessitate hospitalization. A mixed episode can include increased energy levels, irritability, pressured speech, and impulsivity alongside low mood, fatigue, and feelings of worthlessness.
F31.62 applies specifically to bipolar I disorder, not bipolar II disorder, which includes hypomanic episodes and at least one major depressive episode, but no full manic episode. This code is important for diagnosis, tracking disease severity, and guiding treatment decisions such as the use of mood stabilizers, antipsychotics, and psychotherapy.
Early recognition and accurate coding help prevent worsening symptoms and allow clinicians to better manage medical conditions that may be associated with mood dysregulation.