Corrosion of unsp deg mult sites of unsp ank/ft, sequela

This code indicates a long-term complication or late effect resulting from a chemical burn or corrosion affecting multiple, unspecified areas of the ankle and foot. The original burn's severity is not specified, and the current condition is a residual issue from that past injury.

Use this code when documenting a patient presenting with a chronic problem, such as scarring, contracture, or chronic pain, that is directly attributable to a previous chemical burn of the ankle and foot. This code is appropriate when the specific degree of the initial corrosion and the exact sites on the ankle and foot are not documented or are unknown.

• Always sequence this code after the code for the primary sequela (e.g., scar, contracture).
• Ensure documentation clearly links the current condition to a past chemical burn of the ankle and foot.
• Avoid using this code for acute chemical burns; it is strictly for sequelae.