ICD-10 Code F31.62 – Bipolar disorder, current episode mixed, moderate (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F31.62 – Bipolar disorder, current episode mixed, moderate
What it is
This code identifies bipolar disorder with a mixed episode, meaning manic and depressive symptoms occur together or overlap. The episode is moderate in severity, so documentation should support neither mild nor severe impairment.
Clinical signs
Clinical features may include elevated or irritable mood with racing thoughts, increased activity, and reduced need for sleep, alongside depressed mood, hopelessness, or psychomotor slowing. Clinical features vary; refer to documentation.
When to use this code
Use F31.62 when the provider documents bipolar disorder, current episode mixed, and specifies moderate severity. It fits records showing both manic and depressive features during the same episode. If severity is not stated, check documentation before coding.
Do not use for
Do not use this code for bipolar disorder without a current mixed episode, or when the episode is documented as mild or severe instead. Do not assign it if the diagnosis is uncertain; check documentation.
Coding tip
Confirm that both the mixed episode and moderate severity are explicitly documented before assigning F31.62.