L12.1: Cicatricial pemphigoid

Your mucous membrane is broken in some places.

Your immune system is attacking certain parts of your mucous membrane. Your mucous membrane is inflamed and damaged as a result. Most often, the mucous membrane in the head that is affected. Blisters may also form on the rest of the skin.

The mucous membrane is usually red, and broken in some places. This is often painful. When the wounds heal, the mucous membrane scars over. The symptoms depend on which locations are affected. You may have difficulties eating or swallowing, for example. You may lose weight as a result.

The disorder is usually lifelong. Symptoms can vary in severity. There may also be psychological effects.

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).