CPT® Code 38790

The procedure described by CPT® Code 38790 refers to an injection procedure known as lymphangiography. This diagnostic imaging technique is utilized to visualize the lymphatic system, which is a crucial component of the body's immune system and fluid balance. The procedure begins with the cleansing of the skin on the foot, ensuring a sterile environment for the injection. A blue indicator dye is then injected between several toes, allowing for the observation of the dye's movement as it spreads into the small lymph vessels of the foot. This observation period typically lasts between 15 to 30 minutes, during which the provider assesses the delineation of the lymph vessels. Once adequate visualization is achieved, a local anesthetic is administered over one of the larger lymph vessels to minimize discomfort during the subsequent steps. The skin is then incised to expose the lymph vessel, allowing for the insertion of a needle or catheter. Contrast media is injected into the exposed lymph vessel, which is essential for obtaining clear images of the lymphatic system. The lymphangiograms, which are separate diagnostic images, are captured as the contrast travels through the lymph vessels, providing valuable information about the condition of the lymphatic system. This procedure may also include imaging of the extremity vessels and/or pelvic and/or abdominal vessels, depending on the clinical indications and the areas of interest for the diagnostic evaluation.