F31.64 – Bipolar disorder, current episode mixed, severe, with psychotic features

F31.64 diagnosis code: Bipolar disorder, current episode mixed, severe, with psychotic features

• F31.64 ICD-10-CM code used for reimbursement for the diagnosis of bipolar disorder, current episode mixed, severe, with psychotic features (American Academy of Professional Coders, n.d.).
• This ICD-10-CM code is used to diagnose bipolar disorder, current episode mixed, severe, with psychotic features in America. Internationally, the code may differ.
• The difference between F31.64 and F31.63 is that this code considers the presence of psychotic features wherein the patient experiences symptoms like delusions, hallucinations, and disturbed/confused thoughts.

Is F31.64 billable?

Yes, F31.64 is billable and can be used for insurance reimbursement purposes.

Clinical information

• Bipolar disorder, also known as manic depressive illness, is a mental health condition causing severe mood swings in patients, changes in behavior, and fluctuations in energy/activity levels.
• To classify a bipolar disorder as a mixed episode, the patient must experience symptoms of both a manic episode, characterized by elevated moods such as joy and delight, and depressive episodes, which predominantly manifest as low moods including sadness and hopelessness.
• The type of bipolar disorder a patient has then, because of their severe mixed episodes that need intervention, is Bipolar I disorder. This is different from Bipolar II disorder, which typically involves less severe manic symptoms.
• A patient experiencing a current episode manic severe with psychotic features bipolar disorder requires immediate clinical attention, as delusions or hallucinations may be present.
• When evaluating patients, it's important to differentiate between bipolar conditions and other mood disorders such as mild major depressive disorder or schizoaffective disorder.
• A single manic episode without history of major depressive episodes may still warrant a bipolar diagnosis according to current diagnostic criteria.
• A patient with a recent episode mixed in their disorder bipolar type presentation may require adjustment to their treatment plan to address both manic and depressive symptoms simultaneously.
• The causes of bipolar disorder are still unknown, but factors like imbalances in brain chemicals, environment, and genetics may play a role.
• Medication, therapy, and ECT are a few of the treatments for bipolar disorder.

Synonyms include:

• Bipolar I disorder, mixed, severe, with psychosis
• Bipolar disorder, current episode mixed with mood-congruent psychotic symptoms
• Severe mixed bipolar I disorder with psychotic features
• Mixed bipolar affective disorder, severe with psychosis
• Bipolar affected disorder, current episode mixed

Other ICD-10 codes commonly used for bipolar disorder, current episode mixed

• 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

Reference

American Academy of Professional Coders. (n.d.). ICD-10-CM Code for bipolar disorder, current episode mixed, severe, with psychotic features F31.64. Codify by AAPC. https://www.aapc.com/codes/icd-10-codes/F31.64