MS-DRG v44.0 · MDC 05: Diseases and Disorders of the Circulatory System
209 — Complex Aortic Arch Procedures
Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
- Relative weight
- 11.5212
- Geometric mean LOS
- 6 days
- Arithmetic mean LOS
- 9.3 days
- Type
- Surgical
About MS-DRG 209
MS-DRG 209, Complex Aortic Arch Procedures, is a surgical 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 11.5212, so Medicare's base payment for this DRG is about 11.52 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 6 days and the arithmetic mean is 9.3 days.
ICD-10-CM codes that group to DRG 209 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 209
What is the relative weight of DRG 209?
- 11.5212 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 209?
- The geometric mean length of stay is 6 days; the arithmetic mean is 9.3 days.
Is DRG 209 medical or surgical?
- DRG 209 is a surgical DRG.