B22: Human immunodeficiency virus [HIV] disease resulting in other specified diseases

B22.2: HIV disease resulting in wasting syndrome

HIV disease resulting in wasting syndrome, as coded B22.2 in ICD-10 WHO classification, is a specific condition observed in individuals infected with the Human Immunodeficiency Virus (HIV). Wasting syndrome is defined by rapid, unintentional weight loss often associated with weakness, fever, and nutritional deficiencies. It specifically involves a loss of 10% or more of body weight, often accompanied by diarrhea or increased metabolism for over 30 days. This condition occurs due to the direct impact of the HIV virus on the body's energy needs, leading to higher energy consumption and reduced food intake. This syndrome is not only related to malnourishment but also the body's response to the ongoing viral infection, which leads to the loss of muscle mass rather than fat. It affects all systems of the body, progressively impairing their function and contributes significantly to the overall progression of the disease.