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MS-DRG v44.0 · MDC 02: Diseases and Disorders of the Eye

123 — Neurological Eye Disorders

Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
Relative weight
0.822
Geometric mean LOS
2 days
Arithmetic mean LOS
2.6 days
Type
Medical

About MS-DRG 123

MS-DRG 123, Neurological Eye Disorders, is a medical DRG in MDC 02 (Diseases and Disorders of the Eye) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.

Its FY2027 relative weight is 0.822, so Medicare's base payment for this DRG is about 0.82 times the average inpatient case (below average), before hospital-specific adjustments. The geometric mean length of stay is 2 days and the arithmetic mean is 2.6 days.

210 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 123 (210)

Chapter 1: Certain infectious and parasitic diseases

Chapter 6: Diseases of the nervous system

Chapter 7: Diseases of the eye and adnexa

Chapter 21: Factors influencing health status and contact with health services

Common questions about DRG 123

What is the relative weight of DRG 123?

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

What is the average length of stay for DRG 123?

The geometric mean length of stay is 2 days; the arithmetic mean is 2.6 days.

Is DRG 123 medical or surgical?

DRG 123 is a medical DRG.