M35.1: Other overlap syndromes

You have a disorder that involves inflammation of your connective tissue.

With this disorder, the immune system targets the body’s own tissue. 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 immune system can target the body’s connective tissue. There is connective tissue everywhere in the body, for example below the skin and surrounding muscles and organs. Muscles and organs have connective tissue, too.

If the immune system attacks the body’s connective tissue, various problems can result. Possible complaints may include changes to the skin and muscle pain, for example. The blood vessels in your fingers might also contract more than usual in the cold. So the fingers turn white or blue.

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).