MS-DRG v44.0 · MDC 07: Diseases and Disorders of the Hepatobiliary System and Pancreas
423 — Other Hepatobiliary or Pancreas O.R. Procedures with MCC
- Relative weight
- 4.1649
- Geometric mean LOS
- 7.8 days
- Arithmetic mean LOS
- 10.9 days
- Type
- Surgical
About MS-DRG 423
MS-DRG 423, Other Hepatobiliary or Pancreas O.R. Procedures with MCC, is a surgical DRG in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 4.1649, so Medicare's base payment for this DRG is about 4.16 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 7.8 days and the arithmetic mean is 10.9 days.
It belongs to a 3-level severity family: DRG 423 (with MCC, weight 4.1649), DRG 424 (with CC, weight 2.1596) and DRG 425 (without CC/MCC, weight 1.8827). The highest-severity level carries 2.2 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
ICD-10-CM codes that group to DRG 423 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 423
What is the relative weight of DRG 423?
- 4.1649 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 423?
- The geometric mean length of stay is 7.8 days; the arithmetic mean is 10.9 days.
Is DRG 423 medical or surgical?
- DRG 423 is a surgical DRG.