This bi-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: Z-Codes and Medical Necessity
If you have any questions, please reach out to your laboratory account manager.
We’re excited to introduce our Laboratory Billing Brief. This bi-monthly flyer includes updates about insurance payor nuances, diagnosis coding reminders, and other helpful tips and information regarding all things laboratory billing.
Collaborate: Lab Billing Brief: Antibody Testing for Syphilis
If you have any questions, please reach out to your laboratory account manager.
Effective Wednesday, July 30, 2025, changes to result reporting will be implemented across all Hematology Departments at Corewell Health Laboratories. These updates will help align all regions within Corewell Health Hematology Departments to provide a high-quality and standardize patient care experience.
The following are the most impactful changes for the Corewell Health West Michigan Region:
Effective July 30, 2025, PD-L1 testing will be performed at Corewell Health Reference Laboratory East and will no longer be a sendout to Neogenomics. Collection instructions and other information may have changed, please visit the lab catalog for more information.
For questions and inquiries, please use the “Contact Us” link above.
New test: PD-L1 [LAB3658]
Former test: PD-L1 to Neogenomics (LAB848)
In January 2025, Corewell Health Laboratories closed Butterworth Outpatient Lab (100 Michigan St.) and opened a new draw site at 275 Michigan Street.
With this transition, there are changes to the testing services previously provided at Butterworth Outpatient Lab. The following tests cannot be collected at the outpatient draw site at 275 Michigan but can be collected at the Lab at the Outpatient Center in 35 Michigan St., regardless of the patient’s age:
Please note that some of these tests can be drawn at other Corewell Hospital Lab locations within the system, but not all. Check the lab catalog for specific requirements for these tests (e.g., authorization needed, by appointment only, etc.). Ensure this information is communicated to your patients for whom these tests have been ordered.
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.
Vitamin D screening for deficiency/insufficiency will now be conducted via immunoassay. Current requests for Vitamin D2/D3 by Mass Spectrometry will be sent out.
For any questions or concerns, please contact the Corewell Health West Laboratory.
Discontinue: LAB1230925 25-Hydroxyvitamin D2 and D3, Serum
Replacement: LAB1231583 Vitamin D 25 Hydroxy
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.