M35.2: Behçet disease

You have Behçet’s disease.

Behçet’s disease involves certain blood vessels becoming inflamed. Blood vessels transport the blood from the heart to the different tissues and organs in the body, and back again. In so doing, they provide the tissue and organs with oxygen and nutrients, and remove waste substances.

Blood vessels in different organs can be affected by the inflammation. When the blood vessels in the mucous membrane of the mouth are affected, ulcers may form in the oral mucosa. Ulcers may also appear on the genital organs and the skin may change. The joints and the digestive tract can also be affected.

The precise cause of the disease is not known.

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).