Definition
An MS-DRG is a Medicare Severity Diagnosis Related Group. Medicare groups an inpatient stay into one of these groups and pays the hospital from the group's relative weight. The FY2027 correction notice lists 768 groups. This site copies Table 5 from CMS-1849-CN, dated September 23, 2026. The lookup is at /drg.
The page shows the title, relative weight, MDC, and medical or surgical type when the file has them. Groups 998 and 999 have no weight in that table. The weight is not a coverage decision.
Source: CMS FY2027 IPPS correction notice, Table 5, file dated September 23, 2026.
Questions
Free to start. Most teams are using it the same day.