CPT® Code 90937

The CPT® Code 90937 refers to a hemodialysis procedure that necessitates repeated evaluations, which may include substantial revisions of the dialysis prescription. In this procedure, a healthcare professional, typically a nurse or technician, inserts two needles into a vascular access site that has been previously established. This access site can be an internal fistula or shunt, an internal graft, or, in less common cases, a central venous catheter. Each needle is connected to flexible plastic tubing that links to a dialysis machine. The first tube is responsible for removing blood from the patient's body, which is then circulated through the dialysis machine. During this process, the blood passes one side of a semipermeable membrane, while dialysis fluid flows on the opposite side. This setup allows for the removal of waste products and excess fluids from the blood, which then transfer through the membrane into the dialysis fluid. The cleansed blood is subsequently returned to the patient's bloodstream via the second tube. The hemodialysis procedure encompasses all evaluation and management services conducted on the same day as the dialysis treatment that are pertinent to the patient's renal disease. Specifically, when a single evaluation and management service is performed on the day of the hemodialysis, CPT® Code 90935 is utilized. In contrast, CPT® Code 90937 is applicable when multiple evaluations and management services are necessary throughout the hemodialysis session.