Furuncle of chest wall

This code describes a localized, painful, pus-filled inflammation of a hair follicle and surrounding tissue, specifically located on the chest wall. It represents a bacterial infection, typically staphylococcal, resulting in a tender, red nodule that may eventually rupture and drain.

Use this code when documentation clearly indicates a furuncle (boil) present on any part of the patient's chest wall. This includes the sternal area, ribs, and intercostal spaces. Supporting documentation should specify the diagnosis of a furuncle and its anatomical location.

• Ensure the documentation explicitly states "furuncle" or "boil" and specifies the chest wall as the anatomical site.
• Do not use this code for carbuncles, which are deeper and involve multiple hair follicles; a different code exists for carbuncles of the trunk.
• Consider additional codes for any associated cellulitis, abscess, or systemic infection if documented.