813 MS-DRG: COAGULATION DISORDERS
MS-DRG 813 groups Medicare inpatient hospital stays for: COAGULATION DISORDERS. This is a medical MS-DRG. It falls under MDC 16 (Diseases and Disorders of Blood, Blood Forming Organs and Immunologic Disorders).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 16 — Diseases and Disorders of Blood, Blood Forming Organs and Immunologic Disorders |
| DRG Type | Medical |
| Severity Level | N/A |
| Relative Weight | 1.5257 |
| Relative Weight (10% Cap Applied) | 1.5257 |
| Geometric Mean Length of Stay | 3.6 days |
| Arithmetic Mean Length of Stay | 4.6 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
40 diagnosis codes can drive assignment here: D65, D66, D67, D68.00, D68.01, D68.020, D68.021, D68.022, D68.023, D68.029, D68.03, D68.04 and 28 more.
From the CMS MS-DRG Definitions Manual (Appendices B and E). Assignment also depends on severity, discharge status and the rest of the claim.
Contextual Map
Every relationship of 813 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Major Diagnostic Category
- MDC 16 — Diseases and Disorders of Blood, Blood Forming Organs and Immunologic Disorders[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (40)
- D65 — Disseminated intravascular coagulation [defibrination syndrome][Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D66 — Hereditary factor VIII deficiency[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D67 — Hereditary factor IX deficiency[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D68.00 — Von Willebrand disease, unspecified[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D68.01 — Von Willebrand disease, type 1[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D68.020 — Von Willebrand disease, type 2A[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D68.021 — Von Willebrand disease, type 2B[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D68.022 — Von Willebrand disease, type 2M[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 32 more
Read from: CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44. All data sources · How to read the labels