D81.7: Major histocompatibility complex class II deficiency

You have a congenital immune deficiency.

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.

Some of your immune cells are unable to work properly. The disease is congenital, which means you were born with it. Other family members may also be affected.

When someone has a congenital immune deficiency, they are unable to properly combat various pathogens. This also relates to pathogens that are actually harmless to healthy people. Pathogens include bacteria, viruses and fungi, for example. With this condition, the baby can be infected by pathogens during the first months of their life. The pathogens may cause severe lung inflammation or diarrhea, for example. If this happens repeatedly, the body can be severely weakened. As a result, babies and small children may grow more slowly and put on less weight than normal.

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).