Acute lymphangitis of left lower limb

This code signifies an acute bacterial infection of the lymphatic vessels in the left lower extremity, often presenting as red streaks extending from an infection site towards regional lymph nodes. It indicates an inflammatory process within the lymphatic system, typically caused by streptococcal or staphylococcal bacteria.

Apply this code when documentation clearly states acute lymphangitis affecting the left leg, foot, or thigh. This is commonly seen in patients with cellulitis, skin wounds, or other localized infections that have spread to the lymphatic system. Supporting documentation should specify the acute nature and the affected limb.

• Ensure the documentation specifies "acute" and the "left lower limb" to avoid miscoding.
• Do not confuse with chronic lymphangitis or lymphedema, which have different codes.
• Always code the underlying infection (e.g., cellulitis, wound infection) first, if present, as the primary diagnosis.