MS-DRG v44.0 · MDC 19: Mental Diseases and Disorders
876 — O.R. Procedures with Principal Diagnosis of Mental Illness
Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
- Relative weight
- 3.6897
- Geometric mean LOS
- 6.7 days
- Arithmetic mean LOS
- 15.4 days
- Type
- Surgical
About MS-DRG 876
MS-DRG 876, O.R. Procedures with Principal Diagnosis of Mental Illness, is a surgical DRG in MDC 19 (Mental Diseases and Disorders) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 3.6897, so Medicare's base payment for this DRG is about 3.69 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 6.7 days and the arithmetic mean is 15.4 days.
ICD-10-CM codes that group to DRG 876 (0)
This DRG is assigned by procedure, not by a diagnosis list.
Common questions about DRG 876
What is the relative weight of DRG 876?
- 3.6897 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 876?
- The geometric mean length of stay is 6.7 days; the arithmetic mean is 15.4 days.
Is DRG 876 medical or surgical?
- DRG 876 is a surgical DRG.