564 MS-DRG: OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC
MS-DRG 564 groups Medicare inpatient hospital stays for: OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC. This is a medical MS-DRG. It falls under MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue |
| DRG Type | Medical |
| Severity Level | MCC |
| Relative Weight | 1.4908 |
| Relative Weight (10% Cap Applied) | 1.4908 |
| Geometric Mean Length of Stay | 4.6 days |
| Arithmetic Mean Length of Stay | 5.9 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
6,776 diagnosis codes can drive assignment here: B90.2, D16.00, D16.01, D16.02, D16.10, D16.11, D16.12, D16.20, D16.21, D16.22, D16.30, D16.31 and 6,764 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 564 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 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (6776)
- B90.2 — Sequelae of tuberculosis of bones and joints[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D16.00 — Benign neoplasm of scapula and long bones of unspecified upper limb[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D16.01 — Benign neoplasm of scapula and long bones of right upper limb[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D16.02 — Benign neoplasm of scapula and long bones of left upper limb[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D16.10 — Benign neoplasm of short bones of unspecified upper limb[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D16.11 — Benign neoplasm of short bones of right upper limb[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D16.12 — Benign neoplasm of short bones of left upper limb[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D16.20 — Benign neoplasm of long bones of unspecified lower limb[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 6768 more
DRG family
- DRG 565 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC[DRG family]: “OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC — same CMS DRG family (564-566), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 564-566) · FY2027
- DRG 566 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC[DRG family]: “OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC — same CMS DRG family (564-566), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 564-566) · FY2027
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 · How MedCoder verifies its implementation
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources