L00-L08: Infections of the skin and subcutaneous tissue

L02: Cutaneous abscess, furuncle and carbuncle

Cutaneous abscess, furuncle, and carbuncle refer to a group of conditions primarily involving skin infections. Cutaneous abscess is a localized collection of pus within the skin tissues. It is often caused by bacteria - most commonly Staphylococcus aureus. The infected area typically swells and becomes painful. A furuncle, also known as a boil, is a deeper infection of the hair follicle resulting in a painful, red bump that can eventually pus. A carbuncle is a cluster of furuncles, forming a larger, more painful lesion that discharges pus. These infections typically start as minor skin cracks or follicle inflammation, with bacteria entering and multiplying beneath the skin. This group of conditions can occur anywhere but are common on the face, neck, armpit, buttocks, and thighs. Progression varies, but without proper attention, the infection can spread to deeper tissues or into the bloodstream.