2025 ICD-10-CM Diagnosis Code F34.0

Cyclothymic disorder

F34.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2025 edition of ICD-10-CM F34.0 became effective on October 1, 2024.
This is the American ICD-10-CM version of F34.0 – other international versions of ICD-10 F34.0 may differ.

Applicable To

The following code(s) above F34.0 contain annotation back-references

that may be applicable to F34.0:

Approximate Synonyms

Clinical Information

Affective disorder characterized by alternating and recurring periods of depression and elation, similar to manic depressive disorder but of a less severe nature.
An affective disorder characterized by periods of depression and hypomania. These may be separated by periods of normal mood.
Chronic mood disturbance of at least 2 years’ duration involving numerous hypomanic episodes separated by periods of depression or loss of pleasure or interest.

ICD-10-CM F34.0 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

Convert F34.0 to ICD-9-CMCode History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change
2024 (effective 10/1/2023): No change
2025 (effective 10/1/2024): No change

Code annotations containing back-references to F34.0:

Diagnosis Index entries containing back-references to F34.0:

Cycloid personality F34.0
Cyclothymia F34.0
Cyclothymic personality F34.0
Disorder (of) – see also Disease
- moodF39
  - persistentF34.9
    - cyclothymia F34.0
- personalityF60.9 – see also Personality
  - affective F34.0
  - cyclothymic F34.0
  - hyperthymic F34.0
- cyclothymic F34.0
Personality (disorder) F60.9
- affective F34.0
- cycloid F34.0
- cyclothymic F34.0
- hyperthymic F34.0