The document discusses the Medicare Prospective Payment System (PPS), which is a method of reimbursement where Medicare payment is made based on a predetermined, fixed amount for designated hospital outpatient services and certain Medicare services for patients without coverage. The PPS facilitates healthcare pricing by adding new drugs, devices, and procedures; updating payment rates for medicines based on sales price data; and providing a tool to estimate prospective payments to help patients understand pricing and feel satisfied with costs.