ICD-10-CM > S00-T88 > S00-S09 > S00 > S00.2 > S00.22 > S00.222 S00.222 Blister (nonthermal) of left eyelid and periocular area Non-Billable/Non-Specific Codes S00.222A..., initial encounterS00.222D..., subsequent encounterS00.222S..., sequela