F34.0 is the ICD-10 code for Cyclothymia. It is a four-character subcategory of F34 (Persistent mood [affective] disorders), the most specific level in the WHO edition. It belongs to the block F30–F39 (Mood [affective] disorders) in Chapter V, Mental and behavioural disorders.
- Code type
- Subcategory (4 characters)
- Chapter
- V · F00–F99
- Classification
- WHO ICD-10, 2019 version
Definition
A persistent instability of mood involving numerous periods of depression and mild elation, none of which is sufficiently severe or prolonged to justify a diagnosis of bipolar affective disorder (F31.-) or recurrent depressive disorder (F33.-). This disorder is frequently found in the relatives of patients with bipolar affective disorder. Some patients with cyclothymia eventually develop bipolar affective disorder.
What F34.0 includes
Conditions and terms that are coded here.
- Affective personality disorder
- Cycloid personality
- Cyclothymic personality
F34.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
F34.0Cyklotymi
F34.0Cyklotymi
DF340Cyklotymi
- DF3400Cyklotym personlighedsstruktur
- DF3401Cyklotym tilstand
F34.0Mielialan aaltoiluhäiriö (syklotymia)
F34.0Zyklothymia
F34.0Cyclothymie
F34.0cyclothymie
F34.0Cyclothymic disorder
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free