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MS-DRG v44.0 · MDC 16: Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders

813 — Coagulation Disorders

Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
Relative weight
1.5257
Geometric mean LOS
3.6 days
Arithmetic mean LOS
4.6 days
Type
Medical

About MS-DRG 813

MS-DRG 813, Coagulation Disorders, is a medical DRG in MDC 16 (Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.

Its FY2027 relative weight is 1.5257, so Medicare's base payment for this DRG is about 1.53 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 3.6 days and the arithmetic mean is 4.6 days.

40 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 813 (40)

Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

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

Common questions about DRG 813

What is the relative weight of DRG 813?

1.5257 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.

What is the average length of stay for DRG 813?

The geometric mean length of stay is 3.6 days; the arithmetic mean is 4.6 days.

Is DRG 813 medical or surgical?

DRG 813 is a medical DRG.