ICD-10 Code L02.234 – Carbuncle of groin (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.234 – Carbuncle of groin
What it is
L02.234 identifies a carbuncle located in the groin. A carbuncle is a deeper skin infection made up of connected boils, usually involving hair follicles and surrounding tissue.
Clinical signs
Typical findings include a painful, swollen, red, and tender lesion in the groin, often with drainage or crusting. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a carbuncle specifically in the groin or inguinal area. Code it when the diagnosis is clear and the site is documented as groin, not just a general skin abscess.
If the record only states “boil” or “skin infection” without location, check documentation before assigning L02.234. Make sure the note supports a carbuncle rather than a furuncle or other localized infection.
Do not use for
Do not use this code for a simple abscess, furuncle, or cellulitis unless the provider documents a carbuncle of the groin. Check documentation when the site or lesion type is unclear.
Coding tip
Confirm both the lesion type and the anatomic site in the provider note before coding L02.234.