MS-DRG 303: ATHEROSCLEROSIS WITHOUT MCC
MS-DRG 303 is atherosclerosis without mcc, in MDC 05 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 0.6612, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 1.80 days. 63 ICD-10-CM principal diagnoses group into MS-DRGs 302–303 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 0.6612
- Geometric mean LOS
- 1.80
- Arithmetic mean LOS
- 2.20
- Post-acute transfer
- No
Principal diagnoses that group to MS-DRGs 302–303
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 63 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 302–303 the case lands in. The 24 most-searched:
- I25.10Atherosclerotic heart disease of native coronary artery without angina pectoris
- I25.118Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
- I25.2Old myocardial infarction
- I51.7Cardiomegaly
- I25.119Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
- R93.1Abnormal findings on diagnostic imaging of heart and coronary circulation
- I25.5Ischemic cardiomyopathy
- I51.89Other ill-defined heart diseases
- I51.9Heart disease, unspecified
- I25.110Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
- I99.8Other disorder of circulatory system
- I25.810Atherosclerosis of coronary artery bypass graft(s) without angina pectoris
- I25.84Coronary atherosclerosis due to calcified coronary lesion
- I25.9Chronic ischemic heart disease, unspecified
- I51.3Intracardiac thrombosis, not elsewhere classified
- I87.8Other specified disorders of veins
- I25.83Coronary atherosclerosis due to lipid rich plaque
- I99.9Unspecified disorder of circulatory system
- I25.111Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm
- I25.709Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris
- I25.811Atherosclerosis of native coronary artery of transplanted heart without angina pectoris
- I25.82Chronic total occlusion of coronary artery
- I25.89Other forms of chronic ischemic heart disease
- I52Other heart disorders in diseases classified elsewhere
39 more codes group here. Open any code above for its full hierarchy, or check a whole claim in the free DRG calculator.
The severity splits
Same base DRG, split by whether a secondary diagnosis is a CC or MCC. The last column is the weight change from MS-DRG 303.
| 302 | ATHEROSCLEROSIS WITH MCC | 1.1984 | +0.5372 |
| 303 | ATHEROSCLEROSIS WITHOUT MCC | 0.6612 |
All FY2027 MS-DRGs · MDC 05