Corrosion of third degree of right ankle, sequela

This code indicates a third-degree corrosion injury to the right ankle, where the initial injury has healed, but residual effects or complications persist. Corrosion, similar to a chemical burn, involves deep tissue damage, potentially affecting all layers of the skin and underlying structures. The "sequela" designation signifies that this code is used to report the long-term consequences of such an injury.

Use this code when documenting or billing for the ongoing management of complications arising from a previously sustained third-degree chemical burn to the right ankle. This includes conditions like scarring, contractures, chronic pain, or functional impairment directly attributable to the original corrosion. It is appropriate for follow-up encounters after the acute phase of healing.

• Always sequence this code after the code for the specific sequela being treated (e.g., scar, contracture).
• Ensure documentation clearly links the current condition to the previous third-degree corrosion of the right ankle.
• Do not use this code for acute or active corrosion injuries; those require codes from the acute phase of T25.711.