Cellulitis and abscess of upper arm and forearm

This code signifies a bacterial infection of the skin and subcutaneous tissue (cellulitis) or a localized collection of pus (abscess) affecting the upper arm or forearm. These conditions often present with erythema, warmth, swelling, and tenderness in the affected limb segment.

Apply this code when documentation clearly indicates cellulitis or an abscess located specifically on the upper arm or forearm. This includes infections resulting from skin trauma, insect bites, or surgical incisions in these areas.

• Differentiate from other upper extremity infections, such as lymphadenitis or osteomyelitis, which have distinct codes.
• Ensure the documentation specifies "upper arm" or "forearm" to avoid using a more general upper extremity code.
• Consider an additional code for the causative organism if identified and documented (e.g., Staphylococcus aureus).