Corrosion of second degree of unspecified ankle, subs encntr

This code signifies a second-degree chemical burn, often caused by contact with corrosive substances, affecting an unspecified ankle. This type of injury involves damage to the epidermis and dermis, characterized by blistering, pain, and redness, and is being treated during a subsequent encounter.

Use this code when documenting follow-up care for a patient presenting with a second-degree corrosion injury to an ankle, where the specific ankle (left or right) is not documented. This would include scenarios such as wound care, dressing changes, or monitoring for infection during the healing phase.

• Ensure the documentation clearly specifies "corrosion" (chemical burn) rather than a thermal burn.
• Confirm the encounter is for follow-up care, not the initial treatment, as indicated by the "D" seventh character.
• Verify that the laterality of the ankle is not specified in the medical record to justify using the "unspecified" code.