Corrosion of unsp degree of unspecified thigh, sequela

This code indicates a long-term complication or late effect resulting from a chemical burn or frostbite injury to an unspecified area of the thigh. The original injury's severity is not specified, and the current issue is a residual problem directly attributable to that past corrosion.

Apply this code when documenting a current condition, such as scarring, contracture, chronic pain, or functional impairment, that is a direct consequence of a previously sustained corrosion injury to the thigh. This is appropriate when the acute phase of the original injury has resolved, and the patient is now presenting for treatment of the sequela.

• Always sequence this code after the code for the specific nature of the sequela (e.g., scar, contracture).
• Ensure documentation clearly links the current condition to a past corrosion injury of the thigh.
• Avoid using this code for acute or active corrosion injuries; those require codes from the T20-T32 range without the "S" seventh character.