MS-DRGs in MDC 17
Weights in this category range from 0.7750 (DRG 848) to 8.4080 (DRG 850); the change column compares FY2027 with FY2026.
| DRG | Title | Type | Weight | GMLOS | Change |
|---|---|---|---|---|---|
| 820 | Lymphoma and Leukemia with Major O.R. Procedures with MCC | Surgical | 6.2450 | 11.2 | +6.5% |
| 821 | Lymphoma and Leukemia with Major O.R. Procedures with CC | Surgical | 2.2030 | 3.1 | -1.6% |
| 822 | Lymphoma and Leukemia with Major O.R. Procedures without CC/MCC | Surgical | 1.1270 | 1.4 | -6.4% |
| 823 | Lymphoma and Non-Acute Leukemia with Other Procedures with MCC | Surgical | 4.6050 | 9.9 | +0.4% |
| 824 | Lymphoma and Non-Acute Leukemia with Other Procedures with CC | Surgical | 2.2510 | 4.9 | -0.7% |
| 825 | Lymphoma and Non-Acute Leukemia with Other Procedures without CC/MCC | Surgical | 1.2990 | 2.2 | -3.7% |
| 826 | Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCC | Surgical | 4.7560 | 8.8 | +1.7% |
| 827 | Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CC | Surgical | 2.3890 | 3.9 | +3.4% |
| 828 | Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCC | Surgical | 1.6950 | 2.2 | -0.5% |
| 829 | Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures with CC/MCC | Surgical | 3.1270 | 5.6 | -1.0% |
| 830 | Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures without CC/MCC | Surgical | 1.4850 | 2.0 | -1.3% |
| 834 | Acute Leukemia with MCC | Medical | 5.5080 | 9.7 | +0.3% |
| 835 | Acute Leukemia with CC | Medical | 2.3030 | 4.6 | +10.4% |
| 836 | Acute Leukemia without CC/MCC | Medical | 1.1400 | 2.6 | -6.6% |
| 837 | Chemotherapy with Acute Leukemia as Secondary Diagnosis or with High Dose Chemotherapy Agent with MCC | Medical | 4.7100 | 10.0 | -2.0% |
| 838 | Chemotherapy with Acute Leukemia as Secondary Diagnosis with CC or High Dose Chemotherapy Agent | Medical | 2.1580 | 5.0 | +3.4% |
| 839 | Chemotherapy with Acute Leukemia as Secondary Diagnosis without CC/MCC | Medical | 1.3780 | 3.7 | -4.6% |
| 840 | Lymphoma and Non-Acute Leukemia with MCC | Medical | 3.2740 | 6.7 | +1.2% |
| 841 | Lymphoma and Non-Acute Leukemia with CC | Medical | 1.5770 | 3.9 | -3.3% |
| 842 | Lymphoma and Non-Acute Leukemia without CC/MCC | Medical | 0.9950 | 2.6 | -1.5% |
| 843 | Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses with MCC | Medical | 1.9450 | 5.3 | -2.5% |
| 844 | Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses with CC | Medical | 1.2560 | 3.7 | +3.2% |
| 845 | Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses without CC/MCC | Medical | 0.8440 | 2.3 | -0.9% |
| 846 | Chemotherapy without Acute Leukemia as Secondary Diagnosis with MCC | Medical | 2.5290 | 5.6 | -2.4% |
| 847 | Chemotherapy without Acute Leukemia as Secondary Diagnosis with CC | Medical | 1.3480 | 3.7 | +3.1% |
| 848 | Chemotherapy without Acute Leukemia as Secondary Diagnosis without CC/MCC | Medical | 0.7750 | 2.6 | -8.7% |
| 849 | Radiotherapy | Medical | 2.5850 | 6.5 | -4.6% |
| 850 | Acute Leukemia with Other Procedures | Surgical | 8.4080 | 15.6 | -2.9% |
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 17?
28 MS-DRGs are assigned to MDC 17 (Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms) in the FY2027 v44 grouper: 12 surgical and 16 medical.
Which MDC 17 DRG has the highest weight?
DRG 850, Acute Leukemia with Other Procedures, carries the highest FY2027 relative weight in this category at 8.4080; the lowest is DRG 848 at 0.7750.
How is a stay assigned to this MDC?
The grouper maps the principal diagnosis to MDC 17, 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.