B04: Monkeypox

You have monkeypox.

Monkeypox is caused by viruses. The viruses can occur in rodents. You can get infected via the bodily fluids of an infected animal. You can also get infected via the skin of an infected person. You can also catch the infection from objects. The virus can also be transmitted during sex.

Early in the illness you may have fever, with headaches and muscle pains. The lymph nodes in the groin can become enlarged.

Lesions may form in the mucous membrane of the rectum and the external genital organs. The mucous membrane of the mouth and the conjunctiva of the eye can also be affected. Smallpox typically appears as bumps on the skin. Over time the bumps develop into pus-filled blisters. The blisters then heal and may leave scars behind.

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.