ICD-10 Code L02.235 – Carbuncle of perineum (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.235 – Carbuncle of perineum
What it is
L02.235 identifies a carbuncle in the perineal area. It refers to a deeper, clustered skin infection involving multiple connected boils.
Clinical signs
Typical findings include a painful, swollen, red, and tender lump with possible drainage of pus. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a carbuncle specifically located in the perineum. It is appropriate when the infection site is clearly identified in the record. If the note only says abscess, boil, or skin infection without perineal detail, check documentation.
Do not use for
Do not use it for a simple furuncle, unspecified abscess, or infections in another body site. If the documentation does not confirm a carbuncle of the perineum, check documentation.
Coding tip
Code the documented anatomic site exactly; perineal location is what makes L02.235 specific.