MS-DRG v44.0 · MDC 08: Diseases and Disorders of the Musculoskeletal System and Connective Tissue
473 — Cervical Spinal Fusion without CC/MCC
- Relative weight
- 2.4518
- Geometric mean LOS
- 1.6 days
- Arithmetic mean LOS
- 2 days
- Type
- Surgical
About MS-DRG 473
MS-DRG 473, Cervical Spinal Fusion without CC/MCC, is a surgical DRG in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 2.4518, so Medicare's base payment for this DRG is about 2.45 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 1.6 days and the arithmetic mean is 2 days.
It belongs to a 3-level severity family: DRG 471 (with MCC, weight 4.937), DRG 472 (with CC, weight 2.9811) and DRG 473 (without CC/MCC, weight 2.4518). The highest-severity level carries 2.0 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
ICD-10-CM codes that group to DRG 473 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 473
What is the relative weight of DRG 473?
- 2.4518 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 473?
- The geometric mean length of stay is 1.6 days; the arithmetic mean is 2 days.
Is DRG 473 medical or surgical?
- DRG 473 is a surgical DRG.