Acute lymphadenitis of lower limb

This code represents an acute inflammatory condition affecting the lymph nodes located in the lower extremities, such as the thigh, calf, or foot. It is characterized by sudden onset of pain, tenderness, swelling, and sometimes redness in the affected lymph nodes.

Apply this code when documentation specifies acute inflammation of lymph nodes in any part of the lower limb, excluding the groin region. Supporting documentation should clearly indicate the acute nature of the lymphadenitis and its anatomical location within the lower extremity.

• Differentiate carefully between acute lymphadenitis of the lower limb and acute lymphadenitis of the groin; the latter is classified separately.
• Ensure the documentation specifies "acute" to avoid miscoding with chronic lymphadenitis.
• Look for associated signs and symptoms like pain, tenderness, and swelling localized to lower limb lymph nodes.