How do DRG updates affect hospital reimbursements year over year?

• A. DRG weights and base rates are updated annually to reflect changes in medical costs and practice patterns.
• B. They are fixed for 10 years.
• C. They depend on hospital size only.
• D. They are determined by patient satisfaction scores.

Answer: (A)

In Medicare’s hospital payment system, DRG updates are annual, adjusting both the DRG weights and the base rate to reflect changes in medical costs and practice patterns. The DRG weights estimate the relative resource use for each diagnosis group, while the base rate (which is modified by geography and other factors) funds the overall payment. Because costs, technologies, and typical care patterns change over time, updating these components every year keeps reimbursements aligned with actual resource use. The other options don’t fit: DRG payments aren’t fixed for a decade, aren’t based on hospital size alone, and aren’t determined by patient satisfaction scores.