MS-DRG v44.0 · MDC 05: Diseases and Disorders of the Circulatory System
298 — Cardiac Arrest, Unexplained without CC/MCC
- Relative weight
- 0.4946
- Geometric mean LOS
- 1 days
- Arithmetic mean LOS
- 1 days
- Type
- Medical
About MS-DRG 298
MS-DRG 298, Cardiac Arrest, Unexplained without CC/MCC, is a medical DRG in MDC 05 (Diseases and Disorders of the Circulatory System) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 0.4946, so Medicare's base payment for this DRG is about 0.49 times the average inpatient case (below average), before hospital-specific adjustments. The geometric mean length of stay is 1 days and the arithmetic mean is 1 days.
It belongs to a 3-level severity family: DRG 296 (with MCC, weight 1.4991), DRG 297 (with CC, weight 0.7776) and DRG 298 (without CC/MCC, weight 0.4946). The highest-severity level carries 3.0 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 298 (3)
Chapter 9: Diseases of the circulatory system
Common questions about DRG 298
What is the relative weight of DRG 298?
- 0.4946 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 298?
- The geometric mean length of stay is 1 days; the arithmetic mean is 1 days.
Is DRG 298 medical or surgical?
- DRG 298 is a medical DRG.