897 — Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy without MCC

MS-DRG 897, Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy without MCC, is a medical DRG in MDC 20 (Alcohol/Drug Use and Alcohol/Drug Induced Organic Mental 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 0.8584, so Medicare's base payment for this DRG is about 0.86 times the average inpatient case (below average), before hospital-specific adjustments. The geometric mean length of stay is 3.2 days and the arithmetic mean is 4 days.

It belongs to a 2-level severity family: DRG 896 (with MCC, weight 1.6617) and DRG 897 (without MCC, weight 0.8584). The highest-severity level carries 1.9 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.

457 ICD-10-CM diagnosis codes are part of this DRG's grouping logic; they are listed below.