ICD-10 Code L02.828 – Furuncle of other sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.828 – Furuncle of other sites
What it is
L02.828 identifies a furuncle, or boil, located at a site not named by a more specific ICD-10 code. It represents a localized skin infection centered on a hair follicle.
Clinical signs
Typical findings include a tender, red, swollen nodule that may develop a central pustule or drain pus. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents a furuncle and the site is not better described by a more specific code. It fits isolated boils on unspecified “other” sites, not broader skin infections. Check documentation if the site is unclear or if multiple lesions are present.
Do not use for
Do not use it for carbuncles, abscesses not described as furuncles, or cellulitis. Also avoid it when the anatomic site has a more specific ICD-10 option.
Coding tip
Confirm the exact lesion type and location in the note before assigning L02.828.