Corrosion of second degree of left ankle and foot, sequela

This code signifies a past second-degree corrosive injury (e.g., chemical burn) to the left ankle and/or foot, where the patient is now presenting for treatment of a residual condition or complication directly resulting from that original injury. These sequelae could include scarring, contractures, chronic pain, or functional limitations that persist after the acute phase of the corrosion has resolved.

Apply this code when documenting the long-term effects or complications of a resolved second-degree chemical burn to the left ankle and foot. This is appropriate for encounters where the primary reason for the visit is to address a chronic problem directly attributable to the past corrosive injury, such as scar revision, management of chronic pain, or physical therapy for a contracture.

• 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 a past second-degree corrosive injury of the left ankle/foot.
• Do not use this code for acute corrosive injuries; use the appropriate acute T25.6- code for initial encounters.