DRG 811

Medical DRG

Red Blood Cell Disorders with MCC

TypeMedicalMDC16Dx Codes134

What is MS-DRG 811?

MS-DRG 811 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 16 (MDC 16) with a Major Complication or Comorbidity (MCC). It maps to 134 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 1.4043 with a geometric mean length of stay of 3.7 days and an arithmetic mean of 4.9 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Medical DRG
Diagnosis-driven grouping
Linked Codes
134 diagnosis
Billable Dx
100%
134 of 134 shown

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight
1.4043
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
3.7 days
Used for transfer payment calculations
Arithmetic Mean LOS
4.9 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy

Related MS-DRGs in This Severity Group

The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.

DRGTitleRel. WeightGMLOS
811Red Blood Cell Disorders with MCCThis page1.40433.7 days
812Red Blood Cell Disorders without MCC0.91822.7 days

Linked ICD-10-CM Diagnosis Mappings

  • D46.0

    Refractory anemia without ring sideroblasts, so stated

    BillableChapter 2
  • D46.1

    Refractory anemia with ring sideroblasts

    BillableChapter 2
  • D46.20

    Refractory anemia with excess of blasts, unspecified

    BillableChapter 2
  • D46.21

    Refractory anemia with excess of blasts 1

    BillableChapter 2
  • D46.22

    Refractory anemia with excess of blasts 2

    BillableChapter 2
  • D46.4

    Refractory anemia, unspecified

    BillableChapter 2
  • D46.9

    Myelodysplastic syndrome, unspecified

    BillableChapter 2
  • D46.A

    Refractory cytopenia with multilineage dysplasia

    BillableChapter 2
  • D46.B

    Refractory cytopenia with multilineage dysplasia and ring sideroblasts

    BillableChapter 2
  • D46.C

    Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality

    BillableChapter 2
  • D46.Z

    Other myelodysplastic syndromes

    BillableChapter 2
  • D50.0

    Iron deficiency anemia secondary to blood loss (chronic)

    BillableChapter 3
  • D50.1

    Sideropenic dysphagia

    BillableChapter 3
  • D50.8

    Other iron deficiency anemias

    BillableChapter 3
  • D50.9

    Iron deficiency anemia, unspecified

    BillableChapter 3
  • D51.0

    Vitamin B12 deficiency anemia due to intrinsic factor deficiency

    BillableChapter 3
  • D51.1

    Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria

    BillableChapter 3
  • D51.2

    Transcobalamin II deficiency

    BillableChapter 3
  • D51.3

    Other dietary vitamin B12 deficiency anemia

    BillableChapter 3
  • D51.8

    Other vitamin B12 deficiency anemias

    BillableChapter 3
  • D51.9

    Vitamin B12 deficiency anemia, unspecified

    BillableChapter 3
  • D52.0

    Dietary folate deficiency anemia

    BillableChapter 3
  • D52.1

    Drug-induced folate deficiency anemia

    BillableChapter 3
  • D52.8

    Other folate deficiency anemias

    BillableChapter 3
  • D52.9

    Folate deficiency anemia, unspecified

    BillableChapter 3
  • D53.0

    Protein deficiency anemia

    BillableChapter 3
  • D53.1

    Other megaloblastic anemias, not elsewhere classified

    BillableChapter 3
  • D53.2

    Scorbutic anemia

    BillableChapter 3
  • D53.8

    Other specified nutritional anemias

    BillableChapter 3
  • D53.9

    Nutritional anemia, unspecified

    BillableChapter 3
  • D55.0

    Anemia due to glucose-6-phosphate dehydrogenase [G6PD] deficiency

    BillableChapter 3
  • D55.1

    Anemia due to other disorders of glutathione metabolism

    BillableChapter 3
  • D55.21

    Anemia due to pyruvate kinase deficiency

    BillableChapter 3
  • D55.29

    Anemia due to other disorders of glycolytic enzymes

    BillableChapter 3
  • D55.3

    Anemia due to disorders of nucleotide metabolism

    BillableChapter 3
  • D55.8

    Other anemias due to enzyme disorders

    BillableChapter 3
  • D55.9

    Anemia due to enzyme disorder, unspecified

    BillableChapter 3
  • D56.0

    Alpha thalassemia

    BillableChapter 3
  • D56.1

    Beta thalassemia

    BillableChapter 3
  • D56.2

    Delta-beta thalassemia

    BillableChapter 3
  • D56.3

    Thalassemia minor

    BillableChapter 3
  • D56.4

    Hereditary persistence of fetal hemoglobin [HPFH]

    BillableChapter 3
  • D56.5

    Hemoglobin E-beta thalassemia

    BillableChapter 3
  • D56.8

    Other thalassemias

    BillableChapter 3
  • D56.9

    Thalassemia, unspecified

    BillableChapter 3
  • D57.00

    Hb-SS disease with crisis, unspecified

    BillableChapter 3
  • D57.01

    Hb-SS disease with acute chest syndrome

    BillableChapter 3
  • D57.02

    Hb-SS disease with splenic sequestration

    BillableChapter 3
  • D57.03

    Hb-SS disease with cerebral vascular involvement

    BillableChapter 3
  • D57.04

    Hb-SS disease with dactylitis

    BillableChapter 3
  • D57.09

    Hb-SS disease with crisis with other specified complication

    BillableChapter 3
  • D57.1

    Sickle-cell disease without crisis

    BillableChapter 3
  • D57.20

    Sickle-cell/Hb-C disease without crisis

    BillableChapter 3
  • D57.211

    Sickle-cell/Hb-C disease with acute chest syndrome

    BillableChapter 3
  • D57.212

    Sickle-cell/Hb-C disease with splenic sequestration

    BillableChapter 3
  • D57.213

    Sickle-cell/Hb-C disease with cerebral vascular involvement

    BillableChapter 3
  • D57.214

    Sickle-cell/Hb-C disease with dactylitis

    BillableChapter 3
  • D57.218

    Sickle-cell/Hb-C disease with crisis with other specified complication

    BillableChapter 3
  • D57.219

    Sickle-cell/Hb-C disease with crisis, unspecified

    BillableChapter 3
  • D57.3

    Sickle-cell trait

    BillableChapter 3
  • D57.40

    Sickle-cell thalassemia without crisis

    BillableChapter 3
  • D57.411

    Sickle-cell thalassemia, unspecified, with acute chest syndrome

    BillableChapter 3
  • D57.412

    Sickle-cell thalassemia, unspecified, with splenic sequestration

    BillableChapter 3
  • D57.413

    Sickle-cell thalassemia, unspecified, with cerebral vascular involvement

    BillableChapter 3
  • D57.414

    Sickle-cell thalassemia, unspecified, with dactylitis

    BillableChapter 3
  • D57.418

    Sickle-cell thalassemia, unspecified, with crisis with other specified complication

    BillableChapter 3
  • D57.419

    Sickle-cell thalassemia, unspecified, with crisis

    BillableChapter 3
  • D57.42

    Sickle-cell thalassemia beta zero without crisis

    BillableChapter 3
  • D57.431

    Sickle-cell thalassemia beta zero with acute chest syndrome

    BillableChapter 3
  • D57.432

    Sickle-cell thalassemia beta zero with splenic sequestration

    BillableChapter 3
  • D57.433

    Sickle-cell thalassemia beta zero with cerebral vascular involvement

    BillableChapter 3
  • D57.434

    Sickle-cell thalassemia beta zero with dactylitis

    BillableChapter 3
  • D57.438

    Sickle-cell thalassemia beta zero with crisis with other specified complication

    BillableChapter 3
  • D57.439

    Sickle-cell thalassemia beta zero with crisis, unspecified

    BillableChapter 3
  • D57.44

    Sickle-cell thalassemia beta plus without crisis

    BillableChapter 3
  • D57.451

    Sickle-cell thalassemia beta plus with acute chest syndrome

    BillableChapter 3
  • D57.452

    Sickle-cell thalassemia beta plus with splenic sequestration

    BillableChapter 3
  • D57.453

    Sickle-cell thalassemia beta plus with cerebral vascular involvement

    BillableChapter 3
  • D57.454

    Sickle-cell thalassemia beta plus with dactylitis

    BillableChapter 3
  • D57.458

    Sickle-cell thalassemia beta plus with crisis with other specified complication

    BillableChapter 3
  • D57.459

    Sickle-cell thalassemia beta plus with crisis, unspecified

    BillableChapter 3
  • D57.80

    Other sickle-cell disorders without crisis

    BillableChapter 3
  • D57.811

    Other sickle-cell disorders with acute chest syndrome

    BillableChapter 3
  • D57.812

    Other sickle-cell disorders with splenic sequestration

    BillableChapter 3
  • D57.813

    Other sickle-cell disorders with cerebral vascular involvement

    BillableChapter 3
  • D57.814

    Other sickle-cell disorders with dactylitis

    BillableChapter 3
  • D57.818

    Other sickle-cell disorders with crisis with other specified complication

    BillableChapter 3
  • D57.819

    Other sickle-cell disorders with crisis, unspecified

    BillableChapter 3
  • D58.0

    Hereditary spherocytosis

    BillableChapter 3
  • D58.1

    Hereditary elliptocytosis

    BillableChapter 3
  • D58.2

    Other hemoglobinopathies

    BillableChapter 3
  • D58.8

    Other specified hereditary hemolytic anemias

    BillableChapter 3
  • D58.9

    Hereditary hemolytic anemia, unspecified

    BillableChapter 3
  • D59.30

    Hemolytic-uremic syndrome, unspecified

    BillableChapter 3
  • D59.31

    Infection-associated hemolytic-uremic syndrome

    BillableChapter 3
  • D59.32

    Hereditary hemolytic-uremic syndrome

    BillableChapter 3
  • D59.39

    Other hemolytic-uremic syndrome

    BillableChapter 3
  • D62

    Acute posthemorrhagic anemia

    BillableChapter 3
  • D63.0

    Anemia in neoplastic disease

    BillableChapter 3
  • D63.1

    Anemia in chronic kidney disease

    BillableChapter 3
  • D63.8

    Anemia in other chronic diseases classified elsewhere

    BillableChapter 3
  • D64.0

    Hereditary sideroblastic anemia

    BillableChapter 3
  • D64.1

    Secondary sideroblastic anemia due to disease

    BillableChapter 3
  • D64.2

    Secondary sideroblastic anemia due to drugs and toxins

    BillableChapter 3
  • D64.3

    Other sideroblastic anemias

    BillableChapter 3
  • D64.4

    Congenital dyserythropoietic anemia

    BillableChapter 3
  • D64.81

    Anemia due to antineoplastic chemotherapy

    BillableChapter 3
  • D64.89

    Other specified anemias

    BillableChapter 3
  • D64.9

    Anemia, unspecified

    BillableChapter 3
  • D74.0

    Congenital methemoglobinemia

    BillableChapter 3
  • D74.8

    Other methemoglobinemias

    BillableChapter 3
  • D74.9

    Methemoglobinemia, unspecified

    BillableChapter 3
  • R71.0

    Precipitous drop in hematocrit

    BillableChapter 18
  • R71.8

    Other abnormality of red blood cells

    BillableChapter 18
  • T80.30XA

    ABO incompatibility reaction due to transfusion of blood or blood products, unspecified, initial encounter

    BillableChapter 19
  • T80.310A

    ABO incompatibility with acute hemolytic transfusion reaction, initial encounter

    BillableChapter 19
  • T80.311A

    ABO incompatibility with delayed hemolytic transfusion reaction, initial encounter

    BillableChapter 19
  • T80.319A

    ABO incompatibility with hemolytic transfusion reaction, unspecified, initial encounter

    BillableChapter 19
  • T80.39XA

    Other ABO incompatibility reaction due to transfusion of blood or blood products, initial encounter

    BillableChapter 19
  • T80.40XA

    Rh incompatibility reaction due to transfusion of blood or blood products, unspecified, initial encounter

    BillableChapter 19
  • T80.410A

    Rh incompatibility with acute hemolytic transfusion reaction, initial encounter

    BillableChapter 19
  • T80.411A

    Rh incompatibility with delayed hemolytic transfusion reaction, initial encounter

    BillableChapter 19
  • T80.419A

    Rh incompatibility with hemolytic transfusion reaction, unspecified, initial encounter

    BillableChapter 19
  • T80.49XA

    Other Rh incompatibility reaction due to transfusion of blood or blood products, initial encounter

    BillableChapter 19
  • T80.89XA

    Other complications following infusion, transfusion and therapeutic injection, initial encounter

    BillableChapter 19
  • T80.910A

    Acute hemolytic transfusion reaction, unspecified incompatibility, initial encounter

    BillableChapter 19
  • T80.911A

    Delayed hemolytic transfusion reaction, unspecified incompatibility, initial encounter

    BillableChapter 19
  • T80.919A

    Hemolytic transfusion reaction, unspecified incompatibility, unspecified as acute or delayed, initial encounter

    BillableChapter 19
  • T80.92XA

    Unspecified transfusion reaction, initial encounter

    BillableChapter 19
  • T80.A0XA

    Non-ABO incompatibility reaction due to transfusion of blood or blood products, unspecified, initial encounter

    BillableChapter 19
  • T80.A10A

    Non-ABO incompatibility with acute hemolytic transfusion reaction, initial encounter

    BillableChapter 19
  • T80.A11A

    Non-ABO incompatibility with delayed hemolytic transfusion reaction, initial encounter

    BillableChapter 19
  • T80.A19A

    Non-ABO incompatibility with hemolytic transfusion reaction, unspecified, initial encounter

    BillableChapter 19
  • T80.A9XA

    Other non-ABO incompatibility reaction due to transfusion of blood or blood products, initial encounter

    BillableChapter 19