ICD-10 Code F31.13 – Bipolar disorder, current episode manic without psychotic features, severe (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F31.13 – Bipolar disorder, current episode manic without psychotic features, severe
What it is
F31.13 identifies bipolar disorder with a current manic episode that is severe, but without psychotic features. Use it when documentation shows mania is the active episode and psychosis is not present.
Clinical signs
Typical findings include elevated or irritable mood, increased energy, reduced need for sleep, pressured speech, racing thoughts, and impulsive or risky behavior. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents bipolar disorder with a manic episode and specifies that it is severe and without psychotic features. It fits inpatient, outpatient, and emergency notes when the episode severity is clearly stated. If the record mentions psychosis, check documentation for a different code.
Do not use for
Do not use F31.13 for mania with psychotic features, mixed episodes, or bipolar disorder in remission. Also avoid it when the chart does not specify severity or current episode details; check documentation.
Coding tip
Confirm both “severe” and “without psychotic features” are documented before assigning F31.13.