ICD-10-CM > S00-T88 > S30-S39 > S30 > S30.8 > S30.82 > S30.827 S30.827 Blister (nonthermal) of anus Non-Billable/Non-Specific Codes S30.827A..., initial encounterS30.827D..., subsequent encounterS30.827S..., sequela