Burns of 90%/more of body surfc w 0% to 9% third deg burns

This diagnosis code signifies a severe burn injury affecting at least 90% of the patient's total body surface area (TBSA). Within this extensive burn, the proportion of full-thickness (third-degree) burns is minimal, specifically ranging from 0% to 9% of the TBSA. The majority of the burn injury would therefore be superficial or partial-thickness.

This code is appropriate for patients presenting with widespread burns covering nearly their entire body, where the most severe (third-degree) burns constitute less than 10% of the total body surface. This typically indicates a critical burn injury with a significant portion of second-degree or first-degree burns. It is used in cases of extensive thermal, chemical, or electrical burns meeting these TBSA criteria.

• Always confirm the total body surface area (TBSA) affected and the percentage of third-degree burns documented by the physician.
• Ensure the documentation clearly states that 90% or more of the TBSA is burned, with 0-9% of those being third-degree.
• Do not use this code if the third-degree burn percentage is 10% or greater, even if the total body surface area is 90% or more.