ICD-10-CM > L00-L99 > L00-L08 > L02 > L02.3 L02.3 Cutaneous abscess, furuncle and carbuncle of buttock Non-Billable/Non-Specific Type 1 Excludes pilonidal cyst with abscess (L05.01) Codes L02.31Cutaneous abscess of buttockL02.32Furuncle of buttockL02.33Carbuncle of buttock