ICD-10-CM > S00-T88 > S00-S09 > S00 > S00.2 > S00.24 > S00.241 S00.241 External constriction of right eyelid and periocular area Non-Billable/Non-Specific Codes S00.241A..., initial encounterS00.241D..., subsequent encounterS00.241S..., sequela