L87.9: Transepidermal elimination disorder, unspecified

Transepidermal elimination disorder, unspecified, is a group of skin conditions where the body tries to eliminate abnormal substances through the top layer of skin, called the epidermis. Signs such as bumps, cysts, or scaly patches may appear on the skin surface during the process. The substances trying to be removed can be various elements like collagen or elastin fibers, normal elements of the deeper skin layers, or foreign materials. These types of disorders may occur spontaneously or following certain diseases or the use of specific drugs. It's important to note that the exact cause of these cases is often unknown. The conditions usually progress slowly over time and the symptoms and severity may differ greatly among individuals. Particularly, areas of the body like the arms, legs, and trunk tend to be affected by this condition.