MS-DRG v44.0 · MDC 05: Diseases and Disorders of the Circulatory System
318 — Percutaneous Coronary Atherectomy without Intraluminal Device
Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
- Relative weight
- 2.6182
- Geometric mean LOS
- 2.7 days
- Arithmetic mean LOS
- 3.7 days
- Type
- Surgical
About MS-DRG 318
MS-DRG 318, Percutaneous Coronary Atherectomy without Intraluminal Device, 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 2.6182, so Medicare's base payment for this DRG is about 2.62 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 2.7 days and the arithmetic mean is 3.7 days.
ICD-10-CM codes that group to DRG 318 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 318
What is the relative weight of DRG 318?
- 2.6182 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 318?
- The geometric mean length of stay is 2.7 days; the arithmetic mean is 3.7 days.
Is DRG 318 medical or surgical?
- DRG 318 is a surgical DRG.