Oth foreign object in esophagus causing oth injury, sequela

This code describes a long-term or residual effect from a foreign object that was previously lodged in the esophagus, resulting in an injury other than obstruction or perforation. The foreign object itself is no longer present, but its prior presence has led to ongoing complications.

Use this code when documenting a patient presenting with a sequela, such as chronic inflammation, stricture formation, or nerve damage, directly attributable to a foreign body in the esophagus that has since been removed. This code is appropriate for follow-up encounters addressing these persistent issues.

• Requires a seventh character "S" to indicate sequela, meaning the initial injury has healed but a residual condition remains.
• Always sequence this code after the code for the specific sequela (e.g., K22.2 for esophageal obstruction or stricture).
• Do not use for acute foreign body encounters or when the foreign body is still present.