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MS-DRG v44.0 · MDC 05: Diseases and Disorders of the Circulatory System

312 — Syncope and Collapse

Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
Relative weight
0.866
Geometric mean LOS
2.4 days
Arithmetic mean LOS
3.1 days
Type
Medical

About MS-DRG 312

MS-DRG 312, Syncope and Collapse, is a medical 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 0.866, so Medicare's base payment for this DRG is about 0.87 times the average inpatient case (below average), before hospital-specific adjustments. The geometric mean length of stay is 2.4 days and the arithmetic mean is 3.1 days.

5 ICD-10-CM diagnosis codes are part of this DRG's grouping logic; they are listed below.

ICD-10-CM codes that group to DRG 312 (5)

Chapter 9: Diseases of the circulatory system

Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Common questions about DRG 312

What is the relative weight of DRG 312?

0.866 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.

What is the average length of stay for DRG 312?

The geometric mean length of stay is 2.4 days; the arithmetic mean is 3.1 days.

Is DRG 312 medical or surgical?

DRG 312 is a medical DRG.