Foreign body in conjunctival sac, left eye, sequela

This code indicates the presence of a foreign object lodged in the conjunctival sac of the left eye, with the "S" indicating that this is a sequela, or a late effect, of the initial foreign body event. This means the patient is presenting for treatment of a condition or complication that arose as a direct result of the foreign body, rather than for the initial removal.

Use this code when documenting a patient encounter for a chronic or residual condition in the left eye, such as persistent irritation, scarring, or infection, that is directly attributable to a foreign body that was previously present in the conjunctival sac. This applies even if the foreign body has since been removed.

• Always assign an additional code to describe the specific sequela (e.g., conjunctivitis, corneal abrasion, scarring).
• Do not use this code for the initial encounter where the foreign body is still present and being removed.
• Ensure documentation clearly links the current condition to a past foreign body event in the left conjunctival sac.