Corrosion of second degree of unsp hand, unsp site, sequela

This code indicates a healed or residual effect from a second-degree corrosion (chemical burn) that occurred on an unspecified part of the hand. The original injury is no longer acute, and the patient is presenting for treatment or evaluation of a long-term complication, such as scarring, contracture, or chronic pain.

Use this code when documenting a patient encounter for a sequela (late effect) of a second-degree chemical burn to the hand, where the specific location on the hand is not documented. This applies to follow-up visits for chronic issues stemming from the initial injury, after the acute phase has passed and the original burn has healed.

• Always use an external cause code (e.g., from categories X10-X19) in conjunction with this code to describe the cause of the corrosion.
• Ensure documentation clearly states the burn is a "sequela" or "late effect" and is no longer acute.
• Avoid using this code for active, acute second-degree chemical burns; instead, use the appropriate acute burn code.