A cost-saving change in Medicare launched in the final days of the Trump administration will cut payments to hospitals for some surgical procedures while potentially raising costs and confusion for patients. For years, the Centers for Medicare and Medicaid Services (CMS) classified 1,740 surgeries and other services so risky for older adults that Medicare would pay for them only when these adults were admitted to the hospital as inpatients. Under the new rule, the agency is beginning to phase out that requirement. On Jan. 1, 266 shoulder, spine and other musculoskeletal surgeries were crossed off what is called the “inpatient-only list.”