MS-DRG v44.0 · MDC 24: Multiple Significant Trauma
959 — Other O.R. Procedures for Multiple Significant Trauma without CC/MCC
- Relative weight
- 2.7125
- Geometric mean LOS
- 3.4 days
- Arithmetic mean LOS
- 3.8 days
- Type
- Surgical
About MS-DRG 959
MS-DRG 959, Other O.R. Procedures for Multiple Significant Trauma without CC/MCC, is a surgical DRG in MDC 24 (Multiple Significant Trauma) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 2.7125, so Medicare's base payment for this DRG is about 2.71 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 3.4 days and the arithmetic mean is 3.8 days.
It belongs to a 3-level severity family: DRG 957 (with MCC, weight 7.5494), DRG 958 (with CC, weight 4.0749) and DRG 959 (without CC/MCC, weight 2.7125). The highest-severity level carries 2.8 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
ICD-10-CM codes that group to DRG 959 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 959
What is the relative weight of DRG 959?
- 2.7125 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 959?
- The geometric mean length of stay is 3.4 days; the arithmetic mean is 3.8 days.
Is DRG 959 medical or surgical?
- DRG 959 is a surgical DRG.