C96.2: Malignant mast cell tumour

You have cancer in certain immune cells.

The immune system protects the body from pathogens and foreign substances. The immune system can also destroy cells in the body that have pathologically changed. The body's immune system is made up of different types of immune cells. Some immune cells can destroy pathogens or foreign bodies themselves. Other immune cells produce certain antibodies.

There are cancers of immune cells that cause serious symptoms in a short time. But there are also cancers of immune cells that are discovered accidentally and only cause a few symptoms at the beginning.

With this cancer certain immune cells multiply in the bone marrow and also in other organs uncontrollably and too much. These diseased immune cells can crowd out healthy immune cells and blood cells. As a result, you can have too few healthy cells in the blood and the liver and spleen can swell up. The liver and spleen then sometimes no longer work properly. You may have stomach cramps. This disease can also destroy bones. The bones can then break more easily. It is also possible that you will have no symptoms at all.

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.


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