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Corewell Health System

Compliance & Safety, Southwest Michigan, West Michigan

Lab Catalog URL Update – Action Required by December 31, 2025

Effective December 31, 2025, the URL corewellhealth.testcatalog.org will be discontinued.
There will be no automatic redirect to the new site.

To avoid disruption of service, please update your saved links or browser favorites for the Lab Catalog (also known as the Lab Test Directory) to:

👉 corewellhealth.org/labcatalog

This landing page allows you to select the appropriate region for you or your patient’s specimen and will always direct you to the most up-to-date catalog URL for your area.

✅ Update your bookmarks today to ensure uninterrupted access to lab testing information.

October 7, 2025 by Laboratory Services

Lab Billing Brief, Southeast Michigan, Southwest Michigan, West Michigan

Testosterone Testing

This monthly bulletin includes updates about insurance payor nuances, diagnosis coding reminders, and other helpful tips and information regarding all things laboratory billing.

Lab Billing Brief: Testosterone Testing

If you have any questions, please reach out to your laboratory account manager.

October 2, 2025 by Laboratory Services

General Information, Southwest Michigan, West Michigan

Specimen Collection and Test Updates – September 2025

The following information was updated in the Lab Catalog.

All changes are for Corewell Health Laboratories in Southwest and West Michigan. For Laboratories in Southeast Michigan, please visit:corewellhealth.org/labcatalog and navigate to the Southeast Michigan site.

October 1, 2025 by Laboratory Services

Southeast Michigan

Discontinuation of Pearl Top Tube Utilization

Updated 10/1/2025

Effective 10/1/2025, 5 mL Pearl top tubes will no longer be utilized for high sensitivity troponin testing at Corewell Health East Laboratories. In lieu of pearl top tubes, 4 mL lavender top tubes will be the preferred tube type for High sensitivity troponin testing. Should a Pearl top tube be sent for high sensitivity Troponin testing, it will still be accepted and testing performed.