D81: Combined immunodeficiencies
D81.7: Major histocompatibility complex class II 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.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.