302 MS-DRG: ATHEROSCLEROSIS WITH MCC
MS-DRG 302 groups Medicare inpatient hospital stays for: ATHEROSCLEROSIS WITH MCC. This is a medical MS-DRG. It falls under MDC 05 (Diseases and Disorders of the Circulatory System).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 05 — Diseases and Disorders of the Circulatory System |
| DRG Type | Medical |
| Severity Level | MCC |
| Relative Weight | 1.1984 |
| Relative Weight (10% Cap Applied) | 1.1984 |
| Geometric Mean Length of Stay | 2.8 days |
| Arithmetic Mean Length of Stay | 4 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
63 diagnosis codes can drive assignment here: I25.10, I25.110, I25.111, I25.112, I25.118, I25.119, I25.2, I25.5, I25.6, I25.700, I25.701, I25.702 and 51 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 302 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 05 — Diseases and Disorders of the Circulatory System[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (63)
- I25.10 — Atherosclerotic heart disease of native coronary artery without angina pectoris[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- I25.110 — Atherosclerotic heart disease of native coronary artery with unstable angina pectoris[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- I25.111 — Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- I25.112 — Atherosclerotic heart disease of native coronary artery with refractory angina pectoris[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- I25.118 — Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- I25.119 — Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- I25.2 — Old myocardial infarction[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- I25.5 — Ischemic cardiomyopathy[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 55 more
DRG family
- DRG 303 — ATHEROSCLEROSIS WITHOUT MCC[DRG family]: “ATHEROSCLEROSIS WITHOUT MCC — same CMS DRG family (302-303), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 302-303) · 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