Carbuncle of umbilicus

This code describes a severe, deep-seated bacterial infection of the hair follicles and surrounding subcutaneous tissue located at the umbilicus. It presents as a cluster of interconnected boils, often with multiple draining sinuses, and can be accompanied by systemic symptoms like fever and malaise.

Use this code when documentation clearly indicates a carbuncle specifically located at the umbilicus. This diagnosis is typically supported by physical examination findings of a painful, inflamed, indurated lesion with multiple pustular openings in the umbilical region, often confirmed by bacterial culture.

• Ensure the documentation specifies "carbuncle" and not just a "furuncle" or "abscess" of the umbilicus.
• Verify the exact anatomical site is the umbilicus; other abdominal wall carbuncles would use different codes.
• Consider additional codes for any associated systemic infections (e.g., cellulitis, sepsis) if documented.