MS-DRGs in MDC 24
Weights in this category range from 1.0050 (DRG 965) to 7.5500 (DRG 957); the change column compares FY2027 with FY2026.
| DRG | Title | Type | Weight | GMLOS | Change |
|---|---|---|---|---|---|
| 955 | Craniotomy for Multiple Significant Trauma | Surgical | 6.5260 | 8.0 | -3.1% |
| 956 | Limb Reattachment, Hip and Femur Procedures for Multiple Significant Trauma | Surgical | 3.8310 | 5.9 | +1.8% |
| 957 | Other O.R. Procedures for Multiple Significant Trauma with MCC | Surgical | 7.5500 | 9.6 | -0.9% |
| 958 | Other O.R. Procedures for Multiple Significant Trauma with CC | Surgical | 4.0750 | 6.3 | -3.3% |
| 959 | Other O.R. Procedures for Multiple Significant Trauma without CC/MCC | Surgical | 2.7110 | 3.4 | -7.9% |
| 963 | Other Multiple Significant Trauma with MCC | Medical | 2.6360 | 5.2 | -3.6% |
| 964 | Other Multiple Significant Trauma with CC | Medical | 1.4970 | 3.8 | -2.4% |
| 965 | Other Multiple Significant Trauma without CC/MCC | Medical | 1.0050 | 2.6 | +6.8% |
How to read this table
The relative weight is the payment multiplier CMS applies to a hospital's wage-adjusted standardized amount; a weight of 2.0 pays roughly twice an average inpatient case before outliers and add-ons. Geometric mean length of stay is the figure used in post-acute transfer calculations, so stays shorter than it in a transfer DRG are paid per diem. The change column compares the FY2027 final weight with FY2026; moves larger than two percent usually come from code reassignments in the final rule's Table 6 series or from updated cost data, and are worth re-checking in contract models and budgets before October 1. Surgical DRGs require a qualifying operating-room procedure; medical DRGs are reached when no such procedure is coded.
Frequently asked questions
How many MS-DRGs are in MDC 24?
8 MS-DRGs are assigned to MDC 24 (Not assigned to an MDC) in the FY2027 v44 grouper: 5 surgical and 3 medical.
Which MDC 24 DRG has the highest weight?
DRG 957, Other O.R. Procedures for Multiple Significant Trauma with MCC, carries the highest FY2027 relative weight in this category at 7.5500; the lowest is DRG 965 at 1.0050.
How is a stay assigned to this MDC?
The grouper maps the principal diagnosis to MDC 24, then checks for a qualifying operating-room procedure to choose between the surgical and medical DRG partitions, and finally applies CC/MCC severity splits.
Sources
Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-01. Verify against the primary file before billing or contracting decisions.
- IPPS FY2027 Final Rule Table 5 (CMS-1849-F)Version v44 FY2027 · effective 2026-10-01 · file CMS-1849-F Table 5.txtSHA-256 01003dd571c1e2f5…
- IPPS FY2026 Final Rule Table 5 (CMS-1833-F)Version v43 FY2026 · effective 2025-10-01 · file CMS-1833-F Table 5.txtSHA-256 bf8c390d14b3cd3e…
Disclaimer
Operational reference compiled from CMS publications. Relative weights are national factors; actual payment depends on hospital-specific rates and adjustments. Not legal, clinical or billing advice.