ICD-10 Code L02.225 – Furuncle of perineum (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.225 – Furuncle of perineum
What it is
L02.225 identifies a localized boil, or furuncle, in the perineal area. It refers to a deep infection of a hair follicle that forms a painful, pus-filled nodule.
Clinical signs
Typical findings include a tender, swollen, red lesion in the perineum, often with a central pustule or drainage. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a furuncle specifically located in the perineum. It fits cases described as a boil, abscessed hair follicle, or localized staphylococcal skin infection in that anatomic site. Do not assume the site if documentation is vague.
Do not use for
Do not use L02.225 for a generalized skin abscess, cellulitis, or a furuncle at another body site. Check documentation if the record describes a pilonidal, Bartholin, or perianal process.
Coding tip
Code the specific perineal location only when it is clearly documented; otherwise, query for the exact site.