F34.1Billable

Dysthymic disorder

Chapter
5. Mental, Behavioral and Neurodevelopmental disorders
Category
F34
Effective date
October 1, 2026

Related codes in category F34

F34Persistent mood [affective] disordersF34.0Cyclothymic disorderYesF34.8Other persistent mood [affective] disordersF34.81Disruptive mood dysregulation disorderYesF34.89Other specified persistent mood disordersYesF34.9Persistent mood [affective] disorder, unspecifiedYes

Frequently asked questions

What is ICD-10 code F34.1?

F34.1 is an ICD-10-CM diagnosis code for Dysthymic disorder.

Is F34.1 a billable code?

Yes. F34.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is F34.1 in?

F34.1 falls under Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.

When did F34.1 become effective?

F34.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to F34.1?

F34.1 belongs to category F34, which includes 6 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.