ICD-10 Code L02.632 – Carbuncle of left foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.632 – Carbuncle of left foot
What it is
This code identifies a carbuncle located on the left foot. A carbuncle is a clustered skin infection with connected boils, usually caused by bacteria and involving deeper tissue than a simple pustule.
Clinical signs
Typical findings include a painful, swollen, red, and often draining lesion on the left foot. Clinical features vary; refer to documentation for evidence of a localized carbuncle rather than a broader skin infection.
When to use this code
Use this code when the provider documents a carbuncle specifically on the left foot. It is appropriate when the diagnosis is clearly localized to that site and no more specific alternative code is documented. Check documentation if the record only says abscess, boil, or cellulitis.
Do not use for
Do not use it for a carbuncle on another body site or for a nonspecific skin abscess without left-foot location. Do not use this code if the documentation identifies a different infection or only a suspected lesion.
Coding tip
Confirm both the lesion type and the exact laterality before assigning the code.