A03.3: Shigellosis due to Shigella sonnei

You have shigellosis.

Shigellosis is caused by certain bacteria. These bacteria are called shigella. There are various groups of these bacteria that occur in different regions of the world. The bacteria can be found in contaminated food and water for instance. If you eat this food or drink this water, you can be infected with the bacteria. The bacteria can also be transmitted directly via sick people.

A common symptom of shigellosis is severe runny diarrhea. The diarrhea can also be mucous or bloody. Sometimes you may also have to vomit. You can moreover have abdominal pain and a fever.

The diarrhea results in much fluid and important nutrients being lost. It is possible to feel very weak in that case. The bacteria can also cause deep wounds to develop in the intestines, or the intestines can become enlarged. This can make you very sick.

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).