Basics about Antegrade Nephrostogram A percutaneous antegrade pyelogram is performed by placing a needle into the collecting system of a kidney with injection of contrast and image documentation. The kidney can be accessed under a variety of guidance methods. This procedure is usually performed prior to more complex renal interventions and is rarely performed as a stand-alone procedure. Different procedures codes are used for coding new and existing access for Nephrostogram procedures. CPT code 50430 and 50431 are reported for injection procedure for antegrade nephrostogram. Both the procedure codes includes…
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