In simple words: This procedure uses a special dye and x-rays to create images of the lymph vessels in your abdomen or pelvis to check for problems. The doctor injects the dye into a lymph vessel, usually in your foot. The doctor monitors and interprets the x-ray images during the exam.

This procedure involves injecting a contrast agent into the lymphatic system of the pelvis or abdomen and then taking x-ray images to visualize the lymphatic vessels and nodes. This code includes the physician’s supervision and interpretation of the imaging. This is a unilateral procedure, meaning it is performed on only one side of the body.

Example 1: A patient presents with unexplained swelling in the left leg. To evaluate the lymphatic system for potential blockage or abnormalities, a unilateral lymphangiogram of the left pelvic and abdominal area is performed., A patient has a history of lymphoma. To assess the extent of the disease and to monitor response to treatment, a unilateral lymphangiogram of the abdominal area is performed., A patient has abnormal lymph nodes detected on a CT scan of the abdomen. To evaluate the lymphatic vessels and nodes in detail, a unilateral lymphangiogram of the affected area of the abdomen is performed.

Documentation should include the medical necessity for the procedure, the area imaged (pelvic or abdominal, unilateral), details about the contrast injection, a description of the findings, and the physician’s interpretation of the images.

** Lymphangiography has largely been replaced by other imaging modalities like CT and MRI. Therefore it is now considered a less common procedure. However, in certain situations, it can still provide valuable information about the lymphatic system that may not be obtainable through other means.