MS-DRG v44.0 · MDC 01: Diseases and Disorders of the Nervous System
089 — Concussion with CC
- Relative weight
- 1.132
- Geometric mean LOS
- 2.6 days
- Arithmetic mean LOS
- 3.3 days
- Type
- Medical
About MS-DRG 089
MS-DRG 089, Concussion with CC, is a medical DRG in MDC 01 (Diseases and Disorders of the Nervous System) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 1.132, so Medicare's base payment for this DRG is about 1.13 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 2.6 days and the arithmetic mean is 3.3 days.
It belongs to a 3-level severity family: DRG 088 (with MCC, weight 1.4273), DRG 089 (with CC, weight 1.132) and DRG 090 (without CC/MCC, weight 0.8273). The highest-severity level carries 1.7 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
4 ICD-10-CM diagnosis codes are part of this DRG's grouping logic; they are listed below.
ICD-10-CM codes that group to DRG 089 (4)
Chapter 19: Injury, poisoning and certain other consequences of external causes
- S06.0X0AConcussion without loss of consciousness, initial encounter
- S06.0X1AConcussion with loss of consciousness of 30 minutes or less, initial encounter
- S06.0X9AConcussion with loss of consciousness of unspecified duration, initial encounter
- S06.0XAAConcussion with loss of consciousness status unknown, initial encounter
Common questions about DRG 089
What is the relative weight of DRG 089?
- 1.132 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 089?
- The geometric mean length of stay is 2.6 days; the arithmetic mean is 3.3 days.
Is DRG 089 medical or surgical?
- DRG 089 is a medical DRG.