808 — Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with MCC

MS-DRG 808, Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with MCC, 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 2.1705, so Medicare's base payment for this DRG is about 2.17 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 5.1 days and the arithmetic mean is 7 days.

It belongs to a 3-level severity family: DRG 808 (with MCC, weight 2.1705), DRG 809 (with CC, weight 1.2262) and DRG 810 (without CC/MCC, weight 1.075). The highest-severity level carries 2.0 times the weight of the lowest, which is why documenting CC and MCC conditions matters.

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