T31 - Burns classified according to extent of body surface involved
T31.5 - Burns involving 50-59% of body surface
T31.50 - Burns involving 50-59% of body surface with 0% to 9% third degree burns
T31.51 - Burns involving 50-59% of body surface with 10-19% third degree burns
T31.52 - Burns involving 50-59% of body surface with 20-29% third degree burns
T31.53 - Burns involving 50-59% of body surface with 30-39% third degree burns
T31.54 - Burns involving 50-59% of body surface with 40-49% third degree burns
T31.55 - Burns involving 50-59% of body surface with 50-59% third degree burns