Cellulitis of left upper limb

This code signifies an acute, spreading bacterial infection of the skin and subcutaneous tissues affecting the left arm, including the shoulder, upper arm, forearm, or hand. It is characterized by localized redness, warmth, swelling, and tenderness, often accompanied by fever and malaise. The infection typically lacks distinct borders and can rapidly progress if untreated.

Apply this code when documentation clearly indicates cellulitis specifically located on the patient's left upper extremity. This includes infections of the left shoulder, arm, forearm, or hand. Supporting documentation should detail the location, signs, and symptoms consistent with cellulitis.

• Ensure the documentation specifies "left" upper limb; laterality is crucial for accurate coding.
• Distinguish from abscess (L02.-) or erysipelas (A46), which have different clinical presentations and coding.
• Look for associated conditions like open wounds or insect bites that may be the portal of entry, and code them additionally if present.