MS-DRGs in MDC 09
Weights in this category range from 0.6010 (DRG 601) to 6.3550 (DRG 573); the change column compares FY2027 with FY2026.
| DRG | Title | Type | Weight | GMLOS | Change |
|---|---|---|---|---|---|
| 570 | Skin Debridement with MCC | Surgical | 2.8590 | 7.4 | -2.8% |
| 571 | Skin Debridement with CC | Surgical | 1.6350 | 4.8 | -3.3% |
| 572 | Skin Debridement without CC/MCC | Surgical | 1.1620 | 2.8 | +1.4% |
| 573 | Skin Graft for Skin Ulcer or Cellulitis with MCC | Surgical | 6.3550 | 12.0 | -3.0% |
| 574 | Skin Graft for Skin Ulcer or Cellulitis with CC | Surgical | 3.5660 | 7.5 | +2.7% |
| 575 | Skin Graft for Skin Ulcer or Cellulitis without CC/MCC | Surgical | 1.8790 | 4.1 | +4.6% |
| 576 | Skin Graft Except for Skin Ulcer or Cellulitis with MCC | Surgical | 4.9780 | 8.3 | +1.6% |
| 577 | Skin Graft Except for Skin Ulcer or Cellulitis with CC | Surgical | 2.8240 | 4.4 | +6.5% |
| 578 | Skin Graft Except for Skin Ulcer or Cellulitis without CC/MCC | Surgical | 1.6700 | 2.2 | +4.0% |
| 579 | Other Skin, Subcutaneous Tissue and Breast Procedures with MCC | Surgical | 3.2490 | 7.4 | +0.3% |
| 580 | Other Skin, Subcutaneous Tissue and Breast Procedures with CC | Surgical | 1.7360 | 4.0 | +0.5% |
| 581 | Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC | Surgical | 1.5360 | 2.1 | +6.4% |
| 582 | Mastectomy for Malignancy with CC/MCC | Surgical | 1.8010 | 2.1 | -6.5% |
| 583 | Mastectomy for Malignancy without CC/MCC | Surgical | 1.8010 | 2.1 | +4.5% |
| 584 | Breast Biopsy, Local Excision and Other Breast Procedures with CC/MCC | Surgical | 2.0290 | 3.3 | -5.2% |
| 585 | Breast Biopsy, Local Excision and Other Breast Procedures without CC/MCC | Surgical | 1.8920 | 2.0 | -1.9% |
| 592 | Skin Ulcers with MCC | Medical | 1.9100 | 5.6 | -1.3% |
| 593 | Skin Ulcers with CC | Medical | 1.1570 | 4.2 | -2.5% |
| 594 | Skin Ulcers without CC/MCC | Medical | 0.7800 | 3.2 | -10.0% |
| 595 | Major Skin Disorders with MCC | Medical | 2.0230 | 5.4 | -4.6% |
| 596 | Major Skin Disorders without MCC | Medical | 1.1070 | 3.5 | +2.2% |
| 597 | Malignant Breast Disorders with MCC | Medical | 1.7380 | 4.8 | +4.3% |
| 598 | Malignant Breast Disorders with CC | Medical | 1.0960 | 3.3 | -3.1% |
| 599 | Malignant Breast Disorders without CC/MCC | Medical | 0.6930 | 1.8 | -9.9% |
| 600 | Non-Malignant Breast Disorders with CC/MCC | Medical | 0.9970 | 3.1 | -4.3% |
| 601 | Non-Malignant Breast Disorders without CC/MCC | Medical | 0.6010 | 2.3 | -0.7% |
| 602 | Cellulitis with MCC | Medical | 1.4270 | 4.5 | +0.4% |
| 603 | Cellulitis without MCC | Medical | 0.8630 | 3.1 | -0.9% |
| 604 | Trauma to the Skin, Subcutaneous Tissue and Breast with MCC | Medical | 1.4530 | 3.8 | -1.3% |
| 605 | Trauma to the Skin, Subcutaneous Tissue and Breast without MCC | Medical | 0.9070 | 2.6 | -1.0% |
| 606 | Minor Skin Disorders with MCC | Medical | 1.5720 | 4.4 | +3.9% |
| 607 | Minor Skin Disorders without MCC | Medical | 0.8770 | 2.9 | -3.2% |
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 09?
32 MS-DRGs are assigned to MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) in the FY2027 v44 grouper: 16 surgical and 16 medical.
Which MDC 09 DRG has the highest weight?
DRG 573, Skin Graft for Skin Ulcer or Cellulitis with MCC, carries the highest FY2027 relative weight in this category at 6.3550; the lowest is DRG 601 at 0.6010.
How is a stay assigned to this MDC?
The grouper maps the principal diagnosis to MDC 09, 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.