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Dx

MS-DRG v44.0 · MDC 15: Newborns and Other Neonates with Conditions Originating in the Perinatal Period

791 — Prematurity with Major Problems

Relative weight
4.1075
Geometric mean LOS
13.3 days
Arithmetic mean LOS
13.3 days
Type
Medical

About MS-DRG 791

MS-DRG 791, Prematurity with Major Problems, is a medical DRG in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.

Its FY2027 relative weight is 4.1075, so Medicare's base payment for this DRG is about 4.11 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 13.3 days and the arithmetic mean is 13.3 days.

2,244 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 791 (2,244)

Chapter 1: Certain infectious and parasitic diseases

Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

Chapter 4: Endocrine, nutritional and metabolic diseases

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders

Chapter 6: Diseases of the nervous system

Chapter 7: Diseases of the eye and adnexa

Chapter 8: Diseases of the ear and mastoid process

Chapter 9: Diseases of the circulatory system

Chapter 10: Diseases of the respiratory system

Chapter 11: Diseases of the digestive system

Chapter 12: Diseases of the skin and subcutaneous tissue

Chapter 13: Diseases of the musculoskeletal system and connective tissue

Chapter 14: Diseases of the genitourinary system

Chapter 16: Certain conditions originating in the perinatal period

Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders

Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Chapter 19: Injury, poisoning and certain other consequences of external causes

Chapter 22: Codes for special purposes

Common questions about DRG 791

What is the relative weight of DRG 791?

4.1075 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.

What is the average length of stay for DRG 791?

The geometric mean length of stay is 13.3 days; the arithmetic mean is 13.3 days.

Is DRG 791 medical or surgical?

DRG 791 is a medical DRG.