Corros 70-79% of body surface w 60-69% third degree corros

This code signifies a severe corrosive injury affecting a significant portion of the patient's body surface area, specifically 70-79%. Within this extensive area, a substantial percentage (60-69%) of the damage is classified as third-degree corrosion, indicating full-thickness tissue destruction.

This code is appropriate for patients presenting with chemical burns or other corrosive injuries where the total body surface area involved is between 70% and 79%, and a majority of that injury (60-69%) has penetrated all layers of the skin. This would typically be seen in major industrial accidents or severe chemical exposures.

• Ensure documentation clearly specifies both the total body surface area affected by corrosion and the percentage of that area classified as third-degree.
• Do not use this code if the total body surface area or the percentage of third-degree corrosion falls outside the specified ranges.
• Always sequence this code after the external cause code (e.g., chemical burn, exposure to corrosive substance) to provide a complete picture of the injury.