Corrosion of second degree of other site of trunk, sequela

This code signifies a second-degree chemical burn, or corrosion, affecting a part of the trunk other than the chest wall, back, or abdomen. It indicates that the injury is a long-term complication or residual effect of the initial burn, rather than the acute injury itself.

Apply this code when documenting a chronic scar, contracture, or other persistent tissue damage resulting from a second-degree chemical burn to areas like the flank, perineum, or buttocks. This is appropriate for follow-up encounters addressing these lasting effects, not the initial treatment of the acute burn.

• Ensure the documentation clearly specifies "corrosion" (chemical burn) and "second degree."
• Verify the affected body part is on the trunk but not specifically the chest wall, back, or abdomen.
• Confirm that the encounter is for a sequela, meaning a late effect or complication of the initial injury, not the acute burn.