MS-DRG v44.0 · MDC 05: Diseases and Disorders of the Circulatory System
320 — Other Endovascular Cardiac Valve Procedures without MCC
- Relative weight
- 2.1648
- Geometric mean LOS
- 1.9 days
- Arithmetic mean LOS
- 2.7 days
- Type
- Surgical
About MS-DRG 320
MS-DRG 320, Other Endovascular Cardiac Valve Procedures without MCC, is a surgical DRG in MDC 05 (Diseases and Disorders of the Circulatory System) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 2.1648, so Medicare's base payment for this DRG is about 2.16 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 1.9 days and the arithmetic mean is 2.7 days.
It belongs to a 2-level severity family: DRG 319 (with MCC, weight 4.2591) and DRG 320 (without MCC, weight 2.1648). The highest-severity level carries 2.0 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
ICD-10-CM codes that group to DRG 320 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 320
What is the relative weight of DRG 320?
- 2.1648 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 320?
- The geometric mean length of stay is 1.9 days; the arithmetic mean is 2.7 days.
Is DRG 320 medical or surgical?
- DRG 320 is a surgical DRG.