Corrosion of second degree of right ankle, sequela

This code signifies a past injury to the right ankle caused by a corrosive substance, resulting in a second-degree burn. The "sequela" indicates that this code is used to report a condition or complication that is a residual effect of the initial corrosion, not the acute injury itself.

Use this code when documenting a current condition, such as scarring, contracture, chronic pain, or functional impairment, that directly resulted from a second-degree corrosive burn to the right ankle that occurred in the past and has healed. This code is appropriate for follow-up visits or when the long-term effects of the burn are being treated.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Do not use this code for the initial acute corrosive burn; instead, refer to the acute burn codes.
• Ensure documentation clearly links the current condition to the past second-degree corrosive burn of the right ankle.