MS-DRG v44.0 · MDC 21: Injuries, Poisonings and Toxic Effects of Drugs
909 — Other O.R. Procedures for Injuries without CC/MCC
- Relative weight
- 1.3799
- Geometric mean LOS
- 2.2 days
- Arithmetic mean LOS
- 2.7 days
- Type
- Surgical
About MS-DRG 909
MS-DRG 909, Other O.R. Procedures for Injuries without CC/MCC, is a surgical DRG in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 1.3799, so Medicare's base payment for this DRG is about 1.38 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 2.2 days and the arithmetic mean is 2.7 days.
It belongs to a 3-level severity family: DRG 907 (with MCC, weight 3.896), DRG 908 (with CC, weight 1.9579) and DRG 909 (without CC/MCC, weight 1.3799). The highest-severity level carries 2.8 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
It is subject to Medicare's post-acute care transfer policy, so payment can be reduced when a patient with a shorter-than-average stay is discharged to a skilled nursing facility, home health or another post-acute setting.
ICD-10-CM codes that group to DRG 909 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 909
What is the relative weight of DRG 909?
- 1.3799 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 909?
- The geometric mean length of stay is 2.2 days; the arithmetic mean is 2.7 days.
Is DRG 909 medical or surgical?
- DRG 909 is a surgical DRG.