MS-DRG 296: CARDIAC ARREST, UNEXPLAINED WITH MCC

DRGMedicalMDC 05

MS-DRG 296 is cardiac arrest, unexplained with mcc, in MDC 05 (a medical DRG), at the with-MCC (major complication or comorbidity) level. Its FY2027 relative weight is 1.4991, so a case here pays more than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 2.00 days. 3 ICD-10-CM principal diagnoses group into MS-DRGs 296–298 under the CMS definitions manual; the most-searched are listed below.

FY2027 payment factors

Relative weight: 1.4991
Geometric mean LOS: 2.00
Arithmetic mean LOS: 3.30
Post-acute transfer: No

Principal diagnoses that group to MS-DRGs 296–298

From the CMS MS-DRG definitions manual’s principal-diagnosis index: 3 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 296–298 the case lands in. The 3 most-searched:

I46.9Cardiac arrest, cause unspecified
I46.2Cardiac arrest due to underlying cardiac condition
I46.8Cardiac arrest due to other underlying condition

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 296.

296	CARDIAC ARREST, UNEXPLAINED WITH MCC	1.4991
297	CARDIAC ARREST, UNEXPLAINED WITH CC	0.7776	-0.7215
298	CARDIAC ARREST, UNEXPLAINED WITHOUT CC/MCC	0.4946	-1.0045

All FY2027 MS-DRGs · MDC 05