Furuncle of right upper limb

This code describes a localized, painful skin infection (furuncle or boil) affecting the right upper extremity. It is characterized by a deep inflammatory nodule that typically involves a hair follicle and surrounding tissue, often progressing to suppuration and necrosis.

Use this code when documentation clearly indicates a furuncle located on any part of the patient's right arm, forearm, wrist, or hand. This code is appropriate for initial encounters, subsequent care, or when the furuncle is the primary reason for the visit. Documentation should specify the right upper limb as the affected site.

• Ensure the documentation specifies "right" upper limb; laterality is crucial for accurate coding.
• Distinguish from carbuncles (multiple interconnected furuncles) which have different codes.
• Do not use for abscesses not specifically identified as furuncles; refer to the L02.41- series for general cutaneous abscesses of the upper limb.