MS-DRG v44.0 · MDC 08: Diseases and Disorders of the Musculoskeletal System and Connective Tissue
507 — Major Shoulder or Elbow Joint Procedures with CC/MCC
- Relative weight
- 1.8575
- Geometric mean LOS
- 5.1 days
- Arithmetic mean LOS
- 6.3 days
- Type
- Surgical
About MS-DRG 507
MS-DRG 507, Major Shoulder or Elbow Joint Procedures with 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 1.8575, so Medicare's base payment for this DRG is about 1.86 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 5.1 days and the arithmetic mean is 6.3 days.
It belongs to a 2-level severity family: DRG 507 (with CC/MCC, weight 1.8575) and DRG 508 (without CC/MCC, weight 1.363). The highest-severity level carries 1.4 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
ICD-10-CM codes that group to DRG 507 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 507
What is the relative weight of DRG 507?
- 1.8575 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 507?
- The geometric mean length of stay is 5.1 days; the arithmetic mean is 6.3 days.
Is DRG 507 medical or surgical?
- DRG 507 is a surgical DRG.