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MS-DRG v44.0 · MDC 09: Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast

596 — Major Skin Disorders without MCC

Relative weight
1.1071
Geometric mean LOS
3.5 days
Arithmetic mean LOS
4.6 days
Type
Medical

About MS-DRG 596

MS-DRG 596, Major Skin Disorders without MCC, is a medical DRG in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.

Its FY2027 relative weight is 1.1071, so Medicare's base payment for this DRG is about 1.11 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 3.5 days and the arithmetic mean is 4.6 days.

It belongs to a 2-level severity family: DRG 595 (with MCC, weight 2.0239) and DRG 596 (without MCC, weight 1.1071). The highest-severity level carries 1.8 times the weight of the lowest, which is why documenting CC and MCC conditions matters.

115 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 596 (115)

Chapter 1: Certain infectious and parasitic diseases

Chapter 2: Neoplasms

Chapter 12: Diseases of the skin and subcutaneous tissue

Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders

Common questions about DRG 596

What is the relative weight of DRG 596?

1.1071 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.

What is the average length of stay for DRG 596?

The geometric mean length of stay is 3.5 days; the arithmetic mean is 4.6 days.

Is DRG 596 medical or surgical?

DRG 596 is a medical DRG.