Acute lymphangitis of left upper limb

This code signifies an acute bacterial infection of the lymphatic vessels in the patient's left upper extremity. It typically presents as red streaks extending from an infection site towards regional lymph nodes, often accompanied by pain, fever, and malaise.

Assign this code when documentation clearly indicates acute inflammation of the lymphatic channels specifically affecting the left arm, forearm, or hand. Supporting documentation should include clinical findings such as erythema, tenderness, and streaking along lymphatic pathways, along with the acute nature of the condition.

• Ensure the documentation specifies "acute" and the "left upper limb" to support this specific code.
• Do not confuse with cellulitis (L03.11-) unless lymphangitis is explicitly documented as the primary diagnosis or a co-occurring condition.
• Sequence this code first if it is the primary reason for the encounter; otherwise, sequence it after the underlying infection if known and documented.