MS-DRGs in MDC 06
Weights in this category range from 0.5400 (DRG 390) to 4.9440 (DRG 326); the change column compares FY2027 with FY2026.
| DRG | Title | Type | Weight | GMLOS | Change |
|---|---|---|---|---|---|
| 326 | Stomach, Esophageal and Duodenal Procedures with MCC | Surgical | 4.9440 | 8.5 | -0.9% |
| 327 | Stomach, Esophageal and Duodenal Procedures with CC | Surgical | 2.4480 | 3.8 | +0.2% |
| 328 | Stomach, Esophageal and Duodenal Procedures without CC/MCC | Surgical | 1.6470 | 1.9 | +2.8% |
| 329 | Major Small and Large Bowel Procedures with MCC | Surgical | 4.5470 | 9.1 | -1.1% |
| 330 | Major Small and Large Bowel Procedures with CC | Surgical | 2.4260 | 4.7 | +1.2% |
| 331 | Major Small and Large Bowel Procedures without CC/MCC | Surgical | 1.7470 | 2.6 | +3.8% |
| 332 | Rectal Resection with MCC | Surgical | 3.7870 | 5.8 | +4.6% |
| 333 | Rectal Resection with CC | Surgical | 2.1280 | 3.3 | -9.1% |
| 334 | Rectal Resection without CC/MCC | Surgical | 1.6840 | 2.2 | +2.8% |
| 335 | Peritoneal Adhesiolysis with MCC | Surgical | 3.5030 | 8.4 | -1.9% |
| 336 | Peritoneal Adhesiolysis with CC | Surgical | 2.1020 | 5.0 | -0.3% |
| 337 | Peritoneal Adhesiolysis without CC/MCC | Surgical | 1.5240 | 2.9 | -0.7% |
| 344 | Minor Small and Large Bowel Procedures with MCC | Surgical | 2.8210 | 6.8 | +9.2% |
| 345 | Minor Small and Large Bowel Procedures with CC | Surgical | 1.4940 | 4.0 | -0.7% |
| 346 | Minor Small and Large Bowel Procedures without CC/MCC | Surgical | 1.2670 | 2.6 | +6.8% |
| 347 | Anal and Stomal Procedures with MCC | Surgical | 2.3580 | 5.5 | +2.7% |
| 348 | Anal and Stomal Procedures with CC | Surgical | 1.1920 | 3.0 | -8.9% |
| 349 | Anal and Stomal Procedures without CC/MCC | Surgical | 0.9130 | 1.7 | +4.8% |
| 350 | Inguinal and Femoral Hernia Procedures with MCC | Surgical | 2.5770 | 5.0 | +3.4% |
| 351 | Inguinal and Femoral Hernia Procedures with CC | Surgical | 1.5640 | 2.8 | +2.6% |
| 352 | Inguinal and Femoral Hernia Procedures without CC/MCC | Surgical | 1.2220 | 1.9 | +4.6% |
| 353 | Hernia Procedures Except Inguinal and Femoral with MCC | Surgical | 2.7530 | 5.3 | -5.1% |
| 354 | Hernia Procedures Except Inguinal and Femoral with CC | Surgical | 1.7190 | 3.1 | +2.2% |
| 355 | Hernia Procedures Except Inguinal and Femoral without CC/MCC | Surgical | 1.3900 | 1.7 | +3.4% |
| 356 | Other Digestive System O.R. Procedures with MCC | Surgical | 4.3380 | 7.4 | -1.3% |
| 357 | Other Digestive System O.R. Procedures with CC | Surgical | 2.2840 | 4.2 | -1.8% |
| 358 | Other Digestive System O.R. Procedures without CC/MCC | Surgical | 1.4880 | 2.5 | +6.4% |
| 368 | Major Esophageal Disorders with MCC | Medical | 1.6430 | 4.0 | +3.2% |
| 369 | Major Esophageal Disorders with CC | Medical | 0.9920 | 2.9 | -0.8% |
| 370 | Major Esophageal Disorders without CC/MCC | Medical | 0.6740 | 2.0 | -3.9% |
| 371 | Major Gastrointestinal Disorders and Peritoneal Infections with MCC | Medical | 1.7090 | 5.1 | -3.6% |
| 372 | Major Gastrointestinal Disorders and Peritoneal Infections with CC | Medical | 0.9970 | 3.5 | -2.4% |
| 373 | Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC | Medical | 0.6950 | 2.6 | -4.4% |
| 374 | Digestive Malignancy with MCC | Medical | 2.1100 | 5.4 | -1.4% |
| 375 | Digestive Malignancy with CC | Medical | 1.1840 | 3.5 | -2.2% |
| 376 | Digestive Malignancy without CC/MCC | Medical | 0.8920 | 2.3 | -3.5% |
| 377 | Gastrointestinal Hemorrhage with MCC | Medical | 1.8130 | 4.4 | -0.8% |
| 378 | Gastrointestinal Hemorrhage with CC | Medical | 0.9730 | 2.9 | -0.8% |
| 379 | Gastrointestinal Hemorrhage without CC/MCC | Medical | 0.6380 | 2.0 | +1.3% |
| 380 | Complicated Peptic Ulcer with MCC | Medical | 1.9240 | 4.9 | -1.9% |
| 381 | Complicated Peptic Ulcer with CC | Medical | 1.0840 | 3.1 | +0.1% |
| 382 | Complicated Peptic Ulcer without CC/MCC | Medical | 0.7280 | 2.5 | -9.1% |
| 383 | Uncomplicated Peptic Ulcer with MCC | Medical | 1.3530 | 3.9 | -2.0% |
| 384 | Uncomplicated Peptic Ulcer without MCC | Medical | 0.8470 | 2.4 | -0.9% |
| 385 | Inflammatory Bowel Disease with MCC | Medical | 1.5540 | 4.8 | -1.8% |
| 386 | Inflammatory Bowel Disease with CC | Medical | 0.9640 | 3.2 | -1.2% |
| 387 | Inflammatory Bowel Disease without CC/MCC | Medical | 0.6460 | 2.4 | -5.1% |
| 388 | Gastrointestinal Obstruction with MCC | Medical | 1.4710 | 4.4 | -0.4% |
| 389 | Gastrointestinal Obstruction with CC | Medical | 0.7890 | 2.9 | -0.1% |
| 390 | Gastrointestinal Obstruction without CC/MCC | Medical | 0.5400 | 2.2 | -0.7% |
| 391 | Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC | Medical | 1.2390 | 3.7 | -2.3% |
| 392 | Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC | Medical | 0.7640 | 2.5 | -2.1% |
| 393 | Other Digestive System Diagnoses with MCC | Medical | 1.5880 | 4.2 | -0.7% |
| 394 | Other Digestive System Diagnoses with CC | Medical | 0.9230 | 2.9 | -1.4% |
| 395 | Other Digestive System Diagnoses without CC/MCC | Medical | 0.6380 | 2.0 | -1.7% |
| 397 | Appendix Procedures with MCC | Surgical | 2.3830 | 4.7 | -0.5% |
| 398 | Appendix Procedures with CC | Surgical | 1.5220 | 2.9 | +0.5% |
| 399 | Appendix Procedures without CC/MCC | Surgical | 1.2030 | 1.8 | +5.1% |
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 06?
58 MS-DRGs are assigned to MDC 06 (Assignment of Diagnosis Codes) in the FY2027 v44 grouper: 30 surgical and 28 medical.
Which MDC 06 DRG has the highest weight?
DRG 326, Stomach, Esophageal and Duodenal Procedures with MCC, carries the highest FY2027 relative weight in this category at 4.9440; the lowest is DRG 390 at 0.5400.
How is a stay assigned to this MDC?
The grouper maps the principal diagnosis to MDC 06, 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.