Corrosions of other internal organs, sequela

This code signifies the long-term effects or complications arising from a past corrosive injury to an internal organ, excluding those specifically classified elsewhere. It indicates that the initial corrosive event has resolved, but its lasting impact on the organ's structure or function is still present.

Apply this code when documenting conditions such as strictures, adhesions, or chronic inflammation in an internal organ that are directly attributable to a previous corrosive exposure. This is appropriate for follow-up encounters where the sequelae, not the acute injury, are being treated or monitored.

• Always use this code with an additional code identifying the specific sequela (e.g., stricture, adhesion).
• Ensure documentation clearly links the current condition to a past corrosive injury.
• Do not use for acute corrosive injuries; those require codes from the T20-T28 range without the "S" seventh character.