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

This code signifies the long-term effects or complications resulting from a burn or corrosion injury of an unspecified degree to an unspecified site on the hand. It indicates that the acute injury has healed, but residual issues such as scarring, contractures, or chronic pain persist. The "sequela" designation means this code is used to report the current condition directly attributable to the past corrosion.

Use this code when documenting a patient presenting with a chronic condition or complication directly linked to a prior corrosion injury of the hand, where the original burn degree and specific hand site were not documented or are unknown. This would apply to follow-up visits for scar management, functional limitations, or chronic pain after the initial healing phase of the burn.

• Always sequence this code after the code describing the specific sequela (e.g., scar, contracture).
• Avoid using this code for acute corrosion injuries; instead, use the appropriate acute burn/corrosion codes.
• If the degree of corrosion or specific hand site is known, use a more specific T23.4- code.