B20-B24: Human immunodeficiency virus [HIV] disease
B21: Human immunodeficiency virus [HIV] disease resulting in malignant neoplasms
The tissue in the body is made up of cells. With cancer, the cells multiply uncontrollably, which leads to a malignant neoplasm (abnormal growth of tissue) developing. The cancer cells can destroy the healthy tissue and spread throughout the body.
The HIV disease is caused by the human immunodeficiency viruses. These viruses are transmitted by certain body fluids. These are mainly sperm and vaginal fluids as well as blood. Because of this, the viruses are transmitted during sex or through blood, for example.
You may then have various problems with this disease. For example, the human immunodeficiency viruses damage certain immune cells of the body. For this reason, you can get infected with other disease pathogens more quickly. In addition, the body’s immune system may not recognize altered cells, either. Due to this, you may get certain cancer diseases more quickly. The human immunodeficiency viruses can also damage certain cells in the brain. Sometimes there are also no symptoms with the HIV disease over a longer period of time. If you become seriously ill and have certain problems due to the human immunodeficiency viruses the disease is then called AIDS.
As a result of your HIV you are ill with a particular cancer. This may be, for example, a certain cancer on your skin or cancer in your lymph nodes.
Subcodes of B21:
- B21.0: HIV disease resulting in Kaposi sarcoma
- B21.1: HIV disease resulting in Burkitt lymphoma
- B21.2: HIV disease resulting in other types of non-Hodgkin lymphoma
- B21.3: HIV disease resulting in other malignant neoplasms of lymphoid, haematopoietic and related tissue
- B21.7: HIV disease resulting in multiple malignant neoplasms
- B21.8: HIV disease resulting in other malignant neoplasms
- B21.9: HIV disease resulting in unspecified malignant neoplasm
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.