Corros 80-89% of body surface w 80-89% third degree corros

This code signifies a severe chemical burn, or corrosion, affecting a very large portion of the patient's body surface, specifically between 80% and 89%. Crucially, the vast majority of this affected area, also 80% to 89%, has sustained full-thickness tissue destruction, indicating third-degree involvement. This represents a critical and life-threatening injury.

Apply this code for patients presenting with extensive chemical burns covering 80-89% of their total body surface area, where the majority (80-89%) of these burns are documented as third-degree. This scenario typically involves significant exposure to highly corrosive substances, often requiring intensive care and specialized burn unit management.

• Ensure physician documentation clearly specifies both the total body surface area (TBSA) affected by corrosion and the percentage of that TBSA that is third-degree.
• Do not use this code if the percentages fall outside the 80-89% range for either total corrosion or third-degree involvement.
• Always sequence this code first as the principal diagnosis when it is the reason for the encounter.