Corrosion of unspecified degree of buttock, sequela

This code signifies a past injury to the buttock caused by a corrosive substance, where the specific degree of the burn is not documented, and the patient is now presenting with a residual effect or complication from that original injury. This could include scarring, contractures, chronic pain, or other long-term sequelae.

Use this code when documenting a patient encounter for a follow-up or treatment of a long-term complication directly resulting from a corrosive burn to the buttock, and the initial burn's severity was not specified. This applies when the acute phase of the injury has passed, and the focus is on the lasting effects.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., scar, contracture).
• Ensure documentation clearly links the current condition to a past corrosive injury of the buttock.
• Avoid using this code for acute corrosive injuries; those require codes from the T20-T25 range without the "S" seventh character.