MS-DRGs in MDC 03
Weights in this category range from 0.6660 (DRG 156) to 4.3100 (DRG 140); the change column compares FY2027 with FY2026.
| DRG | Title | Type | Weight | GMLOS | Change |
|---|---|---|---|---|---|
| 135 | Sinus and Mastoid Procedures with CC/MCC | Surgical | 2.1790 | 3.7 | +0.4% |
| 136 | Sinus and Mastoid Procedures without CC/MCC | Surgical | 1.0620 | 1.3 | +4.6% |
| 137 | Mouth Procedures with CC/MCC | Surgical | 1.3440 | 3.1 | -10.0% |
| 138 | Mouth Procedures without CC/MCC | Surgical | 0.9180 | 1.7 | +3.6% |
| 139 | Salivary Gland Procedures | Surgical | 1.1540 | 2.2 | -6.6% |
| 140 | Major Head and Neck Procedures with MCC | Surgical | 4.3100 | 7.0 | +1.1% |
| 141 | Major Head and Neck Procedures with CC | Surgical | 2.2350 | 3.0 | +2.5% |
| 142 | Major Head and Neck Procedures without CC/MCC | Surgical | 1.7040 | 1.9 | +6.8% |
| 143 | Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC | Surgical | 3.8500 | 6.5 | +2.8% |
| 144 | Other Ear, Nose, Mouth and Throat O.R. Procedures with CC | Surgical | 1.7830 | 2.8 | +2.9% |
| 145 | Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC | Surgical | 1.2340 | 1.6 | +2.7% |
| 146 | Ear, Nose, Mouth and Throat Malignancy with MCC | Medical | 2.1330 | 5.6 | +0.8% |
| 147 | Ear, Nose, Mouth and Throat Malignancy with CC | Medical | 1.3050 | 3.5 | +2.6% |
| 148 | Ear, Nose, Mouth and Throat Malignancy without CC/MCC | Medical | 0.8000 | 2.2 | +0.4% |
| 149 | Dysequilibrium | Medical | 0.7530 | 1.9 | +0.1% |
| 150 | Epistaxis with MCC | Medical | 1.4500 | 3.5 | +8.9% |
| 151 | Epistaxis without MCC | Medical | 0.7610 | 2.1 | +3.7% |
| 152 | Otitis Media and URI with MCC | Medical | 1.1150 | 3.1 | -5.7% |
| 153 | Otitis Media and URI without MCC | Medical | 0.7420 | 2.3 | +0.5% |
| 154 | Other Ear, Nose, Mouth and Throat Diagnoses with MCC | Medical | 1.5920 | 4.0 | +1.9% |
| 155 | Other Ear, Nose, Mouth and Throat Diagnoses with CC | Medical | 0.9320 | 2.8 | +1.8% |
| 156 | Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC | Medical | 0.6660 | 2.1 | -3.6% |
| 157 | Dental and Oral Diseases with MCC | Medical | 1.8080 | 4.6 | +5.3% |
| 158 | Dental and Oral Diseases with CC | Medical | 0.9360 | 2.8 | +2.9% |
| 159 | Dental and Oral Diseases without CC/MCC | Medical | 0.6890 | 2.0 | -2.8% |
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 03?
25 MS-DRGs are assigned to MDC 03 (Assignment of Diagnosis Codes) in the FY2027 v44 grouper: 11 surgical and 14 medical.
Which MDC 03 DRG has the highest weight?
DRG 140, Major Head and Neck Procedures with MCC, carries the highest FY2027 relative weight in this category at 4.3100; the lowest is DRG 156 at 0.6660.
How is a stay assigned to this MDC?
The grouper maps the principal diagnosis to MDC 03, 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.