F34.0: Cyclothymia

Your mood has been fluctuating for a long time. You have a mental disorder.

You sometimes feel mildly depressed and sometimes a bit too euphoric.

When someone feels depressed, they usually have other problems. One may also feel listless, and find it hard to concentrate and sleep.

When one feels more euphoric than usual, other mood changes may occur. For example, one may be more active than usual, more talkative and exaggeratedly optimistic.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information


This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.


Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).