DRG 939
Surgical DRGO.R. Procedures with Diagnoses of Other Contact with Health Services with MCC
TypeSurgicalMDC23
What is MS-DRG 939?
MS-DRG 939 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 23 (MDC 23) with a Major Complication or Comorbidity (MCC). For FY 2026 it carries a relative weight of 3.6285 with a geometric mean length of stay of 6.3 days and an arithmetic mean of 10.5 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
Classification
Surgical DRG
Procedure-driven grouping
Linked Codes
0 diagnosis
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
Relative Weight
3.6285
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
6.3 days
Used for transfer payment calculations
Arithmetic Mean LOS
10.5 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy
Related MS-DRGs in This Severity Group
The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.
| DRG | Title | Rel. Weight | GMLOS |
|---|---|---|---|
| 939 | O.R. Procedures with Diagnoses of Other Contact with Health Services with MCCThis page | 3.6285 | 6.3 days |
| 940 | O.R. Procedures with Diagnoses of Other Contact with Health Services with CC | 2.3369 | 3.1 days |
| 941 | O.R. Procedures with Diagnoses of Other Contact with Health Services without CC/MCC | 2.0277 | 1.9 days |