ICD-10-CM > S00-T88 > S80-S89 > S80 > S80.8 > S80.82 > S80.822 S80.822 Blister (nonthermal), left lower leg Non-Billable/Non-Specific Codes S80.822A..., initial encounterS80.822D..., subsequent encounterS80.822S..., sequela