ICD-10-CM > S00-T88 > S60-S69 > S60 > S60.4 > S60.42 > S60.424 S60.424 Blister (nonthermal) of right ring finger Non-Billable/Non-Specific Codes S60.424A..., initial encounterS60.424D..., subsequent encounterS60.424S..., sequela