MS-DRG v44.0 · MDC 16: Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders
810 — Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders without CC/MCC
- Relative weight
- 1.075
- Geometric mean LOS
- 2.5 days
- Arithmetic mean LOS
- 3.2 days
- Type
- Medical
About MS-DRG 810
MS-DRG 810, Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders without CC/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 1.075, so Medicare's base payment for this DRG is about 1.07 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 2.5 days and the arithmetic mean is 3.2 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.
ICD-10-CM codes that group to DRG 810 (63)
Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- D59.0Drug-induced autoimmune hemolytic anemia
- D59.10Autoimmune hemolytic anemia, unspecified
- D59.11Warm autoimmune hemolytic anemia
- D59.12Cold autoimmune hemolytic anemia
- D59.13Mixed type autoimmune hemolytic anemia
- D59.19Other autoimmune hemolytic anemia
- D59.2Drug-induced nonautoimmune hemolytic anemia
- D59.4Other nonautoimmune hemolytic anemias
- D59.5Paroxysmal nocturnal hemoglobinuria [Marchiafava-Micheli]
- D59.6Hemoglobinuria due to hemolysis from other external causes
- D59.8Other acquired hemolytic anemias
- D59.9Acquired hemolytic anemia, unspecified
- D60.0Chronic acquired pure red cell aplasia
- D60.1Transient acquired pure red cell aplasia
- D60.8Other acquired pure red cell aplasias
- D60.9Acquired pure red cell aplasia, unspecified
- D61.01Constitutional (pure) red blood cell aplasia
- D61.02Shwachman-Diamond syndrome
- D61.03Fanconi anemia
- D61.09Other constitutional aplastic anemia
- D61.1Drug-induced aplastic anemia
- D61.2Aplastic anemia due to other external agents
- D61.3Idiopathic aplastic anemia
- D61.810Antineoplastic chemotherapy induced pancytopenia
- D61.811Other drug-induced pancytopenia
- D61.818Other pancytopenia
- D61.89Other specified aplastic anemias and other bone marrow failure syndromes
- D61.9Aplastic anemia, unspecified
- D70.0Congenital agranulocytosis
- D70.1Agranulocytosis secondary to cancer chemotherapy
- D70.2Other drug-induced agranulocytosis
- D70.3Neutropenia due to infection
- D70.4Cyclic neutropenia
- D70.8Other neutropenia
- D70.9Neutropenia, unspecified
- D71.1Leukocyte adhesion deficiency
- D71.8Other functional disorders of polymorphonuclear neutrophils
- D71.9Functional disorders of polymorphonuclear neutrophils, unspecified
- D72.0Genetic anomalies of leukocytes
- D80.6Antibody deficiency with near-normal immunoglobulins or with hyperimmunoglobulinemia
- D80.8Other immunodeficiencies with predominantly antibody defects
- D80.9Immunodeficiency with predominantly antibody defects, unspecified
- D81.0Severe combined immunodeficiency [SCID] with reticular dysgenesis
- D81.1Severe combined immunodeficiency [SCID] with low T- and B-cell numbers
- D81.2Severe combined immunodeficiency [SCID] with low or normal B-cell numbers
- D81.4Nezelof's syndrome
- D81.6Major histocompatibility complex class I deficiency
- D81.7Major histocompatibility complex class II deficiency
- D81.82Activated Phosphoinositide 3-kinase Delta Syndrome [APDS]
- D81.89Other combined immunodeficiencies
- D81.9Combined immunodeficiency, unspecified
- D82.0Wiskott-Aldrich syndrome
- D82.1Di George's syndrome
- D89.810Acute graft-versus-host disease
- D89.811Chronic graft-versus-host disease
- D89.812Acute on chronic graft-versus-host disease
- D89.813Graft-versus-host disease, unspecified
Chapter 9: Diseases of the circulatory system
Chapter 19: Injury, poisoning and certain other consequences of external causes
Common questions about DRG 810
What is the relative weight of DRG 810?
- 1.075 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 810?
- The geometric mean length of stay is 2.5 days; the arithmetic mean is 3.2 days.
Is DRG 810 medical or surgical?
- DRG 810 is a medical DRG.