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MS-DRG v44.0 · MDC 19: Mental Diseases and Disorders

885 — Psychoses

Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
Relative weight
1.3901
Geometric mean LOS
6.5 days
Arithmetic mean LOS
9.7 days
Type
Medical

About MS-DRG 885

MS-DRG 885, Psychoses, is a medical 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 1.3901, so Medicare's base payment for this DRG is about 1.39 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 6.5 days and the arithmetic mean is 9.7 days.

79 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 885 (79)

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders

Common questions about DRG 885

What is the relative weight of DRG 885?

1.3901 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.

What is the average length of stay for DRG 885?

The geometric mean length of stay is 6.5 days; the arithmetic mean is 9.7 days.

Is DRG 885 medical or surgical?

DRG 885 is a medical DRG.