---
title: "ICD-10-CM F31.4: Bipolar disorder, current episode… | BillingBrief"
description: "F31.4 covers bipolar disorder in a current depressed episode rated severe, with no psychotic features documented. If psychotic features are documented, use…"
canonical: "https://billingbrief.com/icd10/f31.4/"
language: "en"
---

# F31.4 Bipolar disorder, current episode depressed, severe, without psychotic features

ICD-10-CM · [CMS code reference](#source)

F31.4 covers bipolar disorder in a current depressed episode rated severe, with no psychotic features documented. If psychotic features are documented, use F31.5; for a mild or moderate depressed episode, use F31.31 or F31.32.

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Includes

-   bipolar I disorder
-   bipolar type I disorder
-   manic-depressive illness
-   manic-depressive psychosis
-   manic-depressive reaction
-   seasonal bipolar disorder

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   bipolar disorder, single manic episode (F30.-)
-   major depressive disorder, single episode (F32.-)
-   major depressive disorder, recurrent (F33.-)

### Excludes2

Not part of this code, but both can be coded when both are documented.

-   cyclothymia ([F34.0](https://billingbrief.com/icd10/f34.0/))

## Related codes

-   [`F31.2` Bipolar disorder, current episode manic severe with psychotic features ICD-10-CM](https://billingbrief.com/icd10/f31.2/)
-   [`F31.30` Bipolar disorder, current episode depressed, mild or moderate severity, unspecified ICD-10-CM](https://billingbrief.com/icd10/f31.30/)
-   [`F31.31` Bipolar disorder, current episode depressed, mild ICD-10-CM](https://billingbrief.com/icd10/f31.31/)
-   [`F31.32` Bipolar disorder, current episode depressed, moderate ICD-10-CM](https://billingbrief.com/icd10/f31.32/)
-   [`F31.5` Bipolar disorder, current episode depressed, severe, with psychotic features ICD-10-CM](https://billingbrief.com/icd10/f31.5/)
-   [`F31.60` Bipolar disorder, current episode mixed, unspecified ICD-10-CM](https://billingbrief.com/icd10/f31.60/)
-   [`F31.61` Bipolar disorder, current episode mixed, mild ICD-10-CM](https://billingbrief.com/icd10/f31.61/)
-   [`F31.62` Bipolar disorder, current episode mixed, moderate ICD-10-CM](https://billingbrief.com/icd10/f31.62/)

## Common questions

### Is F31.4 a billable code?

Yes. F31.4 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

F31 Bipolar disorder

Chapter

Mental, behavioral and neurodevelopmental disorders

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).