ICD-10 Code L02.83 – Carbuncle of other sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.83 – Carbuncle of other sites
What it is
L02.83 identifies a carbuncle, which is a deeper skin infection made up of connected boils in sites other than the face, neck, axilla, or buttock. Use it when documentation specifies a carbuncle at another body location.
Clinical signs
Typical findings include a painful, red, swollen lesion with multiple draining points or pus. Clinical features vary; refer to documentation for the exact site and whether the lesion is described as a carbuncle.
When to use this code
Use L02.83 when the provider documents a carbuncle at an unspecified “other site” or names a body area not covered by a more specific carbuncle code. It is appropriate when the record clearly distinguishes the lesion as a carbuncle rather than a simple abscess or boil.
Do not use for
Do not use this code for furuncles, simple skin abscesses, or carbuncles in sites with a more specific ICD-10 option. Check documentation if the location or diagnosis wording is unclear.
Coding tip
Confirm both the lesion type and site in the note before assigning L02.83.