Medicare Severity Diagnosis-Related Groups

**Semantic type:** Manufactured Object

**Definition:** A system developed by the Centers for Medicare and Medicaid Services to classify hospital cases into diagnosis-related groups to facilitate Medicare reimbursement. Compared to the CMS-DRG, the MS-DRG adds 300 diagnosis-related groups and factors in the severity of illness for establishing reimbursement levels.

**Synonyms:** - MS-DRG - Medicare Severity-Diagnosis Related Group