MS-DRG v44.0 · MDC 08: Diseases and Disorders of the Musculoskeletal System and Connective Tissue
402 — Single Level Combined Anterior and Posterior Spinal Fusion Except Cervical
Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
- Relative weight
- 4.0967
- Geometric mean LOS
- 2.4 days
- Arithmetic mean LOS
- 2.9 days
- Type
- Surgical
About MS-DRG 402
MS-DRG 402, Single Level Combined Anterior and Posterior Spinal Fusion Except Cervical, 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 4.0967, so Medicare's base payment for this DRG is about 4.10 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 2.4 days and the arithmetic mean is 2.9 days.
ICD-10-CM codes that group to DRG 402 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 402
What is the relative weight of DRG 402?
- 4.0967 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 402?
- The geometric mean length of stay is 2.4 days; the arithmetic mean is 2.9 days.
Is DRG 402 medical or surgical?
- DRG 402 is a surgical DRG.