Carbuncle of other sites

This code signifies a deep, painful infection of a cluster of hair follicles and surrounding subcutaneous tissue, forming multiple interconnected boils, occurring on any body site not specifically classified elsewhere. It represents a more severe form of pyoderma than a single furuncle, often accompanied by systemic symptoms.

Apply this code when documentation specifies a carbuncle located on areas such as the trunk, extremities (excluding specific sites like the face, neck, or buttocks which have their own codes), or scalp. Supporting documentation should clearly identify the lesion as a carbuncle and specify its anatomical location.

• Differentiate from a furuncle (single boil); a carbuncle involves multiple interconnected lesions.
• Avoid using this code if a more specific anatomical site code for carbuncle exists (e.g., face, neck, trunk, buttock).
• Code any associated cellulitis or abscess separately if documented as distinct conditions.