ICD-10-CM > S00-T88 > S60-S69 > S60 > S60.3 > S60.32 S60.32 Blister (nonthermal) of thumb Non-Billable/Non-Specific Codes S60.321Blister (nonthermal) of right thumbS60.321A..., initial encounterS60.321D..., subsequent encounterS60.321S..., sequelaS60.322Blister (nonthermal) of left thumbS60.322A..., initial encounterS60.322D..., subsequent encounterS60.322S..., sequelaS60.329Blister (nonthermal) of unspecified thumbS60.329A..., initial encounterS60.329D..., subsequent encounterS60.329S..., sequela