Burns of 90%/more of body surfc w 50-59% third degree burns

This code signifies a critically severe burn injury affecting nearly the entire body surface, specifically 90% or more. Within this extensive burn, a significant portion, between 50% and 59%, is classified as full-thickness (third-degree) burns, indicating damage through all layers of the skin. Patients with such injuries face extremely high morbidity and mortality.

Assign this code for patients presenting with massive burn trauma where total body surface area (TBSA) involvement is estimated at 90% or greater, and of that, over half (50-59%) are documented as third-degree burns. This code is typically used in acute care settings, such as emergency departments or burn units, following initial assessment and documentation of burn extent and depth.

• Ensure physician documentation clearly specifies both the total body surface area burned (90% or more) and the percentage of third-degree burns (50-59%).
• This code is highly specific; do not use if percentages fall outside the 90% TBSA or 50-59% third-degree range.
• Always sequence this code as a principal diagnosis when it is the primary reason for the admission.