Burns of 80-89% of body surface w 40-49% third degree burns

This diagnosis code signifies a severe burn injury affecting a very large portion of the patient's total body surface area (TBSA), specifically between 80% and 89%. A significant component of this injury, 40% to 49% of the TBSA, involves full-thickness (third-degree) burns, indicating extensive tissue destruction. This level of burn is life-threatening and requires intensive critical care.

This code is appropriate for patients presenting with extensive burn injuries where the total body surface area affected is documented as 80-89%, and within that, 40-49% are specifically identified as third-degree burns. It is typically used in acute care settings, such as emergency departments or burn centers, following initial assessment and documentation of burn extent and depth.

• Ensure precise documentation of both total burn surface area (TBSA) and the percentage of third-degree burns.
• Verify that the documented percentages fall within the specified ranges (80-89% TBSA, 40-49% third-degree).
• Always code additional burn sites and types (e.g., first, second degree) if documented, using appropriate codes.