Furuncle of perineum

This code represents a localized, painful, bacterial infection of a hair follicle and surrounding tissue, specifically located in the perineal region. It is characterized by a central core of pus and necrotic tissue, often presenting as a red, swollen, tender nodule.

Use this code when documentation clearly indicates a furuncle (boil) affecting the perineum. This includes infections of the skin between the anus and the external genitalia. Supporting documentation should specify the diagnosis of a furuncle and its anatomical location.

• Differentiate from abscesses (L02.215) which are deeper and more extensive collections of pus.
• Do not use for carbuncles (L02.235), which are clusters of interconnected furuncles.
• Consider an additional code for the causative organism (e.g., B95.61 for Methicillin susceptible Staphylococcus aureus infection) if identified and documented.