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MS-DRG v44.0 · MDC 04: Diseases and Disorders of the Respiratory System

184 — Major Chest Trauma with CC

Relative weight
1.0647
Geometric mean LOS
3.1 days
Arithmetic mean LOS
3.7 days
Type
Medical

About MS-DRG 184

MS-DRG 184, Major Chest Trauma with CC, is a medical DRG in MDC 04 (Diseases and Disorders of the Respiratory 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 1.0647, so Medicare's base payment for this DRG is about 1.06 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 3.1 days and the arithmetic mean is 3.7 days.

It belongs to a 3-level severity family: DRG 183 (with MCC, weight 1.4903), DRG 184 (with CC, weight 1.0647) and DRG 185 (without CC/MCC, weight 0.7715). The highest-severity level carries 1.9 times the weight of the lowest, which is why documenting CC and MCC conditions matters.

61 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 184 (61)

Chapter 13: Diseases of the musculoskeletal system and connective tissue

Chapter 19: Injury, poisoning and certain other consequences of external causes

Common questions about DRG 184

What is the relative weight of DRG 184?

1.0647 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.

What is the average length of stay for DRG 184?

The geometric mean length of stay is 3.1 days; the arithmetic mean is 3.7 days.

Is DRG 184 medical or surgical?

DRG 184 is a medical DRG.