ICD-10-CM > L00-L99 > L00-L08 > L02 > L02.5 > L02.52 L02.52 Furuncle hand Non-Billable/Non-Specific Applicable To Boil of handFolliculitis of hand Codes L02.521Furuncle right handL02.522Furuncle left handL02.529Furuncle unspecified hand