Burns of 90%/more of body surfc w 10-19% third degree burns

This code signifies a critically severe burn injury affecting 90% or more of the patient's total body surface area (TBSA), with a significant portion (10-19%) of those burns being full-thickness (third-degree). Such extensive burns often involve multiple body systems and carry a high risk of morbidity and mortality.

Apply this code for patients presenting with life-threatening burn injuries where clinical assessment confirms 90% or greater TBSA involvement, and specifically identifies 10-19% of that TBSA as third-degree burns. This is typically seen in major trauma centers or burn units.

• Always confirm the percentage of TBSA burned and the specific breakdown by burn depth (first, second, third degree) from the physician documentation.
• This code requires documentation of both the total body surface area affected and the percentage of third-degree burns within that total.
• Do not assign this code if the third-degree burn percentage is outside the 10-19% range, even if the total TBSA is 90% or more.