M31.0: Hypersensitivity angiitis

You have a disorder that involves inflammation in certain blood vessels.

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. With this disorder, your immune system attacks the body’s own blood vessels. 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. If the immune system attacks the body’s own blood vessels, those blood vessels can become inflamed. When blood vessels in the skin are affected, patches of the skin may turn red or swell up. Blood vessels in the internal organs such as the kidneys and lungs can also be affected.

There are many possible causes for this condition. Possible causes include medication, pathogens, or a disorder of the defense system, for example.

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

Note

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.

Source

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