C.S. Mott Children’s Hospital delivers high-volume, high-acuity pediatric care across inpatient, outpatient, surgical, and emergency services—providing expert, compassionate care to children and families every day.

C.S. MOTT CHILDREN’S HOSPITAL
UNIVERSITY OF MICHIGAN HEALTH

2025 FISCAL YEAR ACTIVITY SUMMARY
July 2024 – June 2025

8,170
Discharges
(excluding newborns)

90,836
Total Patient Days
(includes inpatient, outpatient-in- a-bed and observation patients)

347
Staffed Licensed Beds
(as of 6/30/2025)

CMI
2.03
APR-DRG Case Mix Index

10.11
Average Length of Stay
(in days)

40,009
Emergency Department Visits

3,393
Inpatient Surgical Cases

12,758
Outpatient Surgical Cases

What is the APR-DRG Case Mix Index?
APR-DRG (All Patient Refined Diagnostic Related Group) is a classification system that assesses resource intensity (nursing ratios, equipment needs, surgical interventions) and risk of mortality to each inpatient stay. Numerous factors are considered – medical complexity, diagnoses, surgical procedures, etc. – to assign both an APR-DRG classification and a severity score between 1 (minor) and 4 (extreme).
To arrive at the CMI (case mix index), severity scores are averaged across the patient population. Hospitals with a CMI of 1.0 have an average severity level. As this index rises, it indicates increased patient acuity and resource intensity.

Data sources:
FinanceBI (discharges, total patient days, emergency department visits, inpatient and outpatient OR cases). Includes C.S. Mott Children’s Hospital, Brandon NICU and child psych; excludes women and newborns.
Quality Analytics (APR-DRG CMI, ALOS).
*2025 fiscal year: July 2024-June 2025.