ICD-10 Code L02.231 – Carbuncle of abdominal wall (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.231 – Carbuncle of abdominal wall
What it is
L02.231 identifies a carbuncle on the abdominal wall. A carbuncle is a deeper skin infection made up of connected boils that forms in the soft tissue of the abdomen.
Clinical signs
Typical findings include a painful, swollen, red, and sometimes draining lesion with surrounding inflammation. Clinical features vary; refer to documentation if the note does not clearly describe a carbuncle.
When to use this code
Use this code when the provider documents a carbuncle specifically located on the abdominal wall. It also fits when the abdominal wall lesion is described as a carbuncle, furuncle cluster, or similar deep skin abscess with that location clearly stated.
Do not guess the site from imaging or general abdominal pain alone. If the record only says “skin abscess” or does not specify the abdominal wall, check documentation.
Do not use for
Do not use this code for a simple furuncle, cellulitis, or an abscess at another body site. If the abdominal wall location is not documented, this code is not supported.
Coding tip
Verify both the lesion type and the exact anatomic site before assigning L02.231.