ICD-10 Code L02.223 – Furuncle of chest wall (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.223 – Furuncle of chest wall
What it is
L02.223 identifies a furuncle, or boil, located on the chest wall. It is a localized skin infection centered on a hair follicle, usually forming a painful, pus-filled lump.
Clinical signs
Typical findings include a tender, red, swollen nodule with central pustule or drainage. Clinical features vary; refer to documentation if the record does not clearly state a chest wall furuncle.
When to use this code
Use this code when the provider documents a furuncle specifically on the chest wall. It fits an isolated boil in that location, whether or not it has drained. If the note instead describes a broader skin abscess or cellulitis, verify the exact diagnosis before assigning this code.
Do not use for
Do not use this code for boils at another body site, such as the face or groin. Check documentation if the condition is described as a carbuncle, abscess, or cellulitis rather than a furuncle.
Coding tip
Confirm the anatomic site in the provider note; chest wall location is essential for L02.223.