B00-B09: Viral infections characterized by skin and mucous membrane lesions

The group of conditions represented by B00-B09 are viral infections characterized by lesions on the skin and mucous membranes. They are caused by various types of viruses that can be transmitted from person to person through direct skin-to-skin contact, sharing personal items, or airborne droplets. Common symptoms include sores or blister-like bumps on the skin or the lining of the mouth, nose, and throat. Some individuals may also experience fever, fatigue, or swollen lymph nodes. As these infections progress, the sores generally become painful or itchy and eventually crust over and heal. These viral infections can affect any part of the body but are most commonly found on the face and genital areas. While typically not life-threatening, they can cause discomfort and may lead to complications in those with weak immune systems.