963 MS-DRG: OTHER MULTIPLE SIGNIFICANT TRAUMA WITH MCC
MS-DRG 963 groups Medicare inpatient hospital stays for: OTHER MULTIPLE SIGNIFICANT TRAUMA WITH MCC. This is a medical MS-DRG. It falls under MDC 24 (Multiple Significant Trauma).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 24 — Multiple Significant Trauma |
| DRG Type | Medical |
| Severity Level | MCC |
| Relative Weight | 2.6363 |
| Relative Weight (10% Cap Applied) | 2.6363 |
| Geometric Mean Length of Stay | 5.2 days |
| Arithmetic Mean Length of Stay | 7.4 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
8,727 diagnosis codes can drive assignment here: M96.A1, M96.A2, M96.A3, M96.A4, M96.A9, M99.10, M99.11, M99.12, M99.13, M99.14, M99.15, M99.16 and 8,715 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 963 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 24 — Multiple Significant Trauma[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (8727)
- M96.A1 — Fracture of sternum associated with chest compression and cardiopulmonary resuscitation[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- M96.A2 — Fracture of one rib associated with chest compression and cardiopulmonary resuscitation[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- M96.A3 — Multiple fractures of ribs associated with chest compression and cardiopulmonary resuscitation[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- M96.A4 — Flail chest associated with chest compression and cardiopulmonary resuscitation[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- M96.A9 — Other fracture associated with chest compression and cardiopulmonary resuscitation[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- M99.10 — Subluxation complex (vertebral) of head region[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- M99.11 — Subluxation complex (vertebral) of cervical region[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- M99.12 — Subluxation complex (vertebral) of thoracic region[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 8719 more
DRG family
- DRG 964 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH CC[DRG family]: “OTHER MULTIPLE SIGNIFICANT TRAUMA WITH CC — same CMS DRG family (963-965), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 963-965) · FY2027
- DRG 965 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC[DRG family]: “OTHER MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC — same CMS DRG family (963-965), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 963-965) · 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 20, 2026 · All releases and sources