MS-DRG 939 – O.R. Procedures with Diagnoses of Other Contact with Health Services with MCC
A Surgical DRG in MDC 23 (Factors Influencing Health Status & Other Contacts with Health Services). Its FY 2026 relative weight is 3.6285 with a geometric mean length of stay of 6.3 days.
Severity family
The grouper first assigns the case to MDC 23 from the principal diagnosis, then matches a qualifying operating-room procedure from the ICD-10-PCS list below (this is a Surgical DRG), then applies the severity split from secondary diagnoses: with MCC → 939; with CC → 940; without CC/MCC → 941.
Procedure Codes
Qualifying Diagnosis Codes
Frequently Asked Questions
What is MS-DRG 939?
MS-DRG 939 (O.R. Procedures with Diagnoses of Other Contact with Health Services with MCC) is a surgical DRG in MDC 23 (Factors Influencing Health Status & Other Contacts with Health Services). Its FY 2026 relative weight is 3.6285 with a geometric mean length of stay of 6.3 days.
What is the difference between DRG 939, 940, 941?
All 3 share the same base category; the severity of secondary diagnoses separates them: 939 (with MCC), 940 (with CC), 941 (without CC/MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.
What is the relative weight of DRG 939?
The FY 2026 relative weight of this DRG is 3.6285, meaning reimbursement of roughly 3.63 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
