T31 - Burns classified according to extent of body surface involved
T31.4 - Burns involving 40-49% of body surface
T31.40 - Burns involving 40-49% of body surface with 0% to 9% third degree burns
T31.41 - Burns involving 40-49% of body surface with 10-19% third degree burns
T31.42 - Burns involving 40-49% of body surface with 20-29% third degree burns
T31.43 - Burns involving 40-49% of body surface with 30-39% third degree burns
T31.44 - Burns involving 40-49% of body surface with 40-49% third degree burns