Third degree burns – covering at least 5% but less than 20% of the body’s surface area or at least 10% but less than 20% of surface area of the face
Burns that involve damage or destruction of the skin to its full depth through to the underlying tissue and covering at least 5% and less than 20% of the body’s surface area, or at least 10% and less than 20% of the surface area of the face which for the purpose of this definition includes the forehead and ears.
We've updated the bodies surface area to at least 5% and the surface of the face to 10% but less than 20%.
Third degree burns – covering at least 10% but less than 20% of the body’s surface area or at least 25% but less than 50% of surface area of the face
Burns that involve damage or destruction of the skin to its full depth through to the underlying tissue and covering at least 10% and less than 20% of the body’s surface area, or at least 25% and less than 50% of the surface area of the face which for the purpose of this definition includes the forehead and ears.