DRG 313
Medical DRGChest Pain
What is MS-DRG 313?
MS-DRG 313 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 05 (MDC 05). It maps to 4 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.7200 with a geometric mean length of stay of 1.7 days and an arithmetic mean of 2.1 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
Classification
Medical DRG
Diagnosis-driven grouping
Linked Codes
4 diagnosis
Billable Dx
100%
4 of 4 shown
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
Relative Weight
0.7200
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
1.7 days
Used for transfer payment calculations
Arithmetic Mean LOS
2.1 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy