T20-T25: Burns and corrosions of external body surface, specified by site

T21: Burn and corrosion of trunk

Burn and corrosion of the trunk refer to a group of injuries that result from the skin and other tissues on the trunk of the body coming in contact with extreme heat, flame, or corrosive substances. Burns are generally caused by heat, such as from fire, steam, hot liquids, or hot objects, while corrosion injuries are typically caused by strong acids or bases. These types of injuries can result in damage not just to the skin, but also to the underlying tissues, including the muscles, fat, nerves, and blood vessels. The severity can range from minor to life-threatening, depending on the extent and depth of the injuries. Symptoms typically include pain, red or peeling skin, blisters, swelling, and in severe cases, charred or white skin. Additionally, if a large area is affected, systemic symptoms like fever, weakness, or shock can occur. These conditions are not contagious as they are caused by environmental factors and not by pathogens.