D84.1: Defects in the complement system
Certain proteins in your immune system are not working properly.
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. Certain proteins in the blood also form part of the immune system. These proteins are important in protecting against pathogens.
Depending on which protein is affected, different illnesses can occur. Depending on the illness, the symptoms can vary widely. For example, with certain illnesses, repeated swellings may occur. With other illnesses, pathogens may cause problems more frequently. Such pathogens include certain bacteria, for example.
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).