L12.3: Acquired epidermolysis bullosa

Blisters have formed on your skin.

Your immune system is attacking certain parts of your skin. This may be caused by contact with pathogens, for example. As a result, your skin has become inflamed and damaged.

The skin is then usually red, and broken in some places. Typically, blisters also form on the skin. Areas that are subject to a lot of use are most often affected. This is why the skin on the hands and feet, as well as on the elbows and knees, is often damaged. When the skin damage heals, crusts often form in those places.

The skin may have been damaged for a long time before blisters form.

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).