Corrosion of unspecified degree of abdominal wall, sequela

This code signifies a long-term complication or late effect resulting from a corrosive chemical burn to the abdominal wall, where the original burn's severity was not specified. It indicates that the patient is now experiencing residual issues directly attributable to that past corrosive injury.

Use this code when documenting a patient presenting with a chronic scar, contracture, pain, or other persistent sequela on the abdominal wall, and the medical record clearly links these issues to a previous corrosive chemical burn of an unspecified degree. This code is appropriate for follow-up encounters after the initial acute phase of the burn has resolved.

• Requires a seventh character "S" to indicate sequela, meaning the residual effect of a past injury.
• Do not use for acute corrosive burns; those require codes from the T20-T32 range without the "S" seventh character.
• Always code the specific nature of the sequela (e.g., scar, contracture) first, followed by this code to identify the cause.