MS-DRG v44.0 · MDC 17: Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms
846 — Chemotherapy without Acute Leukemia as Secondary Diagnosis with MCC
- Relative weight
- 2.5302
- Geometric mean LOS
- 5.6 days
- Arithmetic mean LOS
- 7.5 days
- Type
- Medical
About MS-DRG 846
MS-DRG 846, Chemotherapy without Acute Leukemia as Secondary Diagnosis with MCC, is a medical DRG in MDC 17 (Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 2.5302, so Medicare's base payment for this DRG is about 2.53 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 5.6 days and the arithmetic mean is 7.5 days.
It belongs to a 3-level severity family: DRG 846 (with MCC, weight 2.5302), DRG 847 (with CC, weight 1.349) and DRG 848 (without CC/MCC, weight 0.7756). The highest-severity level carries 3.3 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
3 ICD-10-CM diagnosis codes are part of this DRG's grouping logic; they are listed below.
ICD-10-CM codes that group to DRG 846 (3)
Chapter 21: Factors influencing health status and contact with health services
Common questions about DRG 846
What is the relative weight of DRG 846?
- 2.5302 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 846?
- The geometric mean length of stay is 5.6 days; the arithmetic mean is 7.5 days.
Is DRG 846 medical or surgical?
- DRG 846 is a medical DRG.