Corrosion of second degree back of left hand, sequela

This code indicates a second-degree chemical burn (corrosion) affecting the back of the left hand, where the acute injury has healed and the patient is now experiencing a residual condition or complication from the original burn. This could include scarring, contractures, chronic pain, or other long-term effects.

Apply this code when documenting follow-up care for a patient presenting with a sequela (late effect) directly attributable to a second-degree corrosion that occurred on the back of their left hand. This is used for encounters addressing the chronic or long-term consequences, not the initial acute injury.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated (e.g., scar, contracture).
• The "S" in the 7th character indicates "sequela," meaning the residual effect of a healed injury.
• Ensure documentation clearly links the current condition to the past second-degree corrosion of the specified body part.