---
title: "ICD-10-CM F34.9: Persistent mood [affective] disorder… | BillingBrief"
description: "ICD-10-CM code F34.9: Persistent mood [affective] disorder, unspecified. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/f34.9/"
language: "en"
---

# F34.9 Persistent mood \[affective\] disorder, unspecified

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

**Official ICD-10-CM description:** Persistent mood \[affective\] disorder, unspecified

## Related codes

-   [`F34.0` Cyclothymic disorder ICD-10-CM](https://billingbrief.com/icd10/f34.0/)
-   [`F34.1` Dysthymic disorder ICD-10-CM](https://billingbrief.com/icd10/f34.1/)
-   [`F34.81` Disruptive mood dysregulation disorder ICD-10-CM](https://billingbrief.com/icd10/f34.81/)
-   [`F34.89` Other specified persistent mood disorders ICD-10-CM](https://billingbrief.com/icd10/f34.89/)

## Common questions

### Is F34.9 a billable code?

Yes. F34.9 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

F34 Persistent mood \[affective\] disorders

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/).