Final answer:
MS-DRG payments typically cover inpatient services such as room and board, laboratory tests, and operating room services. Outpatient radiology services, however, are not included as they are billed separately.
Step-by-step explanation:
The MS-DRG (Medicare Severity Diagnosis Related Group) payment system is designed to cover various aspects of inpatient care. This would normally include room and board, laboratory tests, and operating room services. However, one service that is typically excluded from MS-DRG payments is outpatient services. Specifically, outpatient radiology services are not covered by MS-DRG payments because these are provided on an outpatient basis and are thus categorized and billed separately.