Corros 90%/more of body surfc w 90%/more third degree corros

This code signifies an extremely severe chemical burn (corrosion) affecting virtually the entire body surface, with the vast majority of the affected area experiencing full-thickness tissue destruction. It indicates a critical, life-threatening injury requiring intensive medical intervention.

Apply this code for patients presenting with chemical burns covering 90% or more of their total body surface area, where 90% or more of these affected areas are classified as third-degree corrosions. This is typically seen in catastrophic industrial accidents or chemical exposures.

• Ensure documentation clearly specifies both the total body surface area affected by corrosion and the percentage of that area that is third-degree.
• Do not use this code for thermal burns; it is exclusively for chemical burns (corrosions).
• Always sequence this code as the primary diagnosis when it represents the reason for the encounter.