Carbuncle and furuncle of hand

This code signifies a localized bacterial infection of the skin and subcutaneous tissue on the hand, characterized by a painful, inflamed nodule (furuncle or boil) or a cluster of interconnected furuncles with multiple draining heads (carbuncle). These infections typically originate in hair follicles and are often caused by Staphylococcus aureus.

Apply this code when documentation clearly indicates a diagnosis of a furuncle or carbuncle specifically located on any part of the hand (e.g., fingers, palm, dorsum). Supporting documentation should include physical exam findings describing the lesion(s) and their location.

• Differentiate from cellulitis or abscess of the hand, which are broader infections without the specific follicular origin.
• Ensure the documentation specifies "hand" as the anatomical site; infections on other body parts require different codes.
• Consider an additional code for the causative organism (e.g., Staphylococcus aureus) if identified and documented.