Blister of left eyelid and periocular area, sequela

This code signifies a non-burn-related fluid-filled lesion on the left eyelid or the surrounding tissues of the eye, indicating a residual effect or complication from a previous injury or condition. It describes the long-term consequences of a blister in this specific anatomical location.

Apply this code when documentation clearly indicates a blister on the left eyelid or periocular area that is a sequela, meaning it is a late effect of an earlier injury or disease. The medical record should specify that the blister is not due to a thermal burn and that it represents a chronic or residual condition.

• Ensure the documentation explicitly states "sequela" or "late effect" for the blister.
• Verify the laterality is precisely "left eyelid and periocular area."
• Do not use this code for acute blisters; a separate code for the acute phase would be appropriate.