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General Information

Corewell Health System, General Information

Reminder: Patient Service Center Holiday Closure

As a reminder, in observance of the Independence Day holiday, all Corewell Health Laboratory Patient Service Centers (drawstations) will be closed on Friday, July 3, 2026.

Per our holiday schedule, when a holiday falls on a Saturday, it is observed on the preceding Friday. Therefore, our drawstations will be closed on Friday, July 3, as the observed holiday, and will remain closed on Saturday, July 4.

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General Information

Paraneoplastic Autoantibody Evaluation

ffective June 2, 2026, Paraneoplastic Autoantibody Evaluation will no longer be offered by Mayo.  The recommended alternate test will be the Encephalitis Antibody Evaluation performed at Quest.

Due to the short notice from Mayo, the new Quest test will not be orderable so will need to be ordered as a Reference Lab Sendout for Miscellaneous Test.

The new orderable test will be available July 8, 2026.

Testing being inactivated:

Lab number Test name
LAB10022 Paraneoplastic Autoantibody Evaluation, Serum
LAB1230344

 

Paraneoplastic Autoantibody Evaluation, CSF

 

Quest alternate testing to Order as Reference Lab Sendout for Miscellaneous

Quest Test code Quest test name
94955 Encephalitis Antibody Evaluation with reflex, Serum
94958 Encephalitis Antibody Evaluation with reflex, CSF

 

For questions regarding testing, please use the “contact us” link above.

Blood Bank, Compliance & Safety, Corewell Health System

Reminder Pre‑Surgical Type & Screen Orders

When ordering a Pre‑surgical Type & Screen, all required order questions must be completed accurately. These answers drive specimen routing, collection timing, and blood bank workflow in Epic.

Epic uses your responses to ensure testing is performed by the correct blood bank at the correct time. Incomplete or incorrect information can result in misrouted specimens, delays, rework, or redraws.

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General Information

Updated: Acute Myeloid Leukemia (AML) Probe Panel by FISH

Effective 4/15/2026, in accordance with the 2024 American College of Medical Genetics and Genomic Technical Laboratory Standards, the Acute Myeloid Leukemia (AML) Probe Panel by FISH will now include:

• -5/5q Deletion
• -7/7q Deletion
• RUNX1::RUNX1T1 t(8;21) Fusion
• NUP98 (11p15.4) Rearrangement
• KMT2A (MLL) (11q23) Rearrangement
• CBFB::MYH11 inv(16) and t(16;16) Fusion
• TP53 (17p13.1) Deletion

The panel will no longer include BCR::ABL t(9;22) and PML::RARA t(15;17). These tests may still be ordered independently.

Additional Resource Link: ACMG Technical Standard Section E6.1-6.6 of the American College of Medical Genetics and Genomics (ACMG) Technical Laboratory Standards: Cytogenomic studies of acquired chromosomal abnormalities in neoplastic blood, bone marrow, and lymph nodes (https://www.gimjournal.org/article/S1098-3600(23)01070-5/fulltext)

Epic Code: LAB2111348

General Information, Test Utilization

New PSA Screening Order Validation Rules

What’s Changing?

Beginning March 9, 2026, a new Order Validation Rules in Epic will apply to all PSA Screening orders. These rules act as hard stops and must be corrected before the order can be signed.

Applies to:

• Prostate Specific Antigen (PSA), Screening [LAB116]

Epic will stop the order if:

Diagnosis Code Is Not Z12.5. Z12.5 (Screening for Prostate Cancer) is required for all PSA Screening orders.

Patient Is <40 Years Old With BCBS Coverage. BCBS does not cover PSA Screening for this group.

Patient Is <50 Years Old With Medicare / Medicare Advantage. Medicare does not deem PSA Screening medically necessary before age 50.

Screening Was Performed Within the Past 11 Months. Annual screening limits apply; users must change the expected date if needed.


Important for Providers Ordering Outside Epic

External practices will not see Epic’s validation warnings, but the draw site (phlebotomy team) will.

What Happens at the Draw Site?

If a paper/EMR PSA Screening order violates any rule:

1. Phlebotomy attempts to enter the order.
2. A hard stop fires in Epic.
3. The phlebotomist cannot override the alert.
4. The order cannot be placed, even with a signed requisition.
5. Staff will:

Inform the patient
Contact the ordering provider for correction
Hold the draw until the provider updates the order

This may require the patient to return if changes can’t be made immediately.

How Providers Can Prevent Delays

✔ Use Z12.5 for all PSA Screening orders
✔ Confirm age + insurance coverage requirements
✔ Ensure no PSA Screening has occurred in the past 11 months
✔ Order a diagnostic PSA instead of a screening when appropriate (symptoms, abnormal findings, ongoing monitoring)

 

 

General Information, Southwest Michigan, West Michigan

Outpatient Laboratory Hours of Operation Update

Effective January 1, 2026, the following outpatient laboratory (PSC’s) hours will be updated.

 

Corewell Health Big Rapids Hospital Laboratory   

605 Oak St., Big Rapids, 49307

Monday to Friday: 6:30 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Gerber Hospital Laboratory – Newaygo

211 W. Pine Lake Drive, Newaygo, 49337

Monday to Thursday: 7 a.m. to noon.,12:30 p.m. to 3 p.m.; Friday: 7 a.m. to noon

 

Corewell Health Greenville Hospital Laboratory

615 S. Bower St., Greenville, 4883

Monday to Friday: 6:30 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Greenville Hospital Laboratory – Lakeview 

8650 W Howard City-Edmore Road, Lakeview, 48850

Monday to Friday: 7 a.m. to 3:30 p.m.; Saturday: 8 a.m. to noon

 

Corewell Health Lakeland Hospitals Laboratory – Niles   

31 N. St. Joseph Ave., Niles, 49120

Monday to Friday: 6:30 a.m. to 5 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Pennock Hospital Laboratory

1009 W. Green St., Hastings, 49058

Monday to Friday: 6 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Pennock Hospital Laboratory – Lake Odessa 

4294 Laurel Drive, Lake Odessa, 48849

Monday to Friday: 7 a.m. to 3 p.m.

 

Corewell Health Reed City Hospital Laboratory

300 N. Patterson Road, Reed City, 49677

Monday to Friday: 6:30 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Watervliet Hospital Laboratory 

400 Medical Park Drive, Watervliet, 49098

Monday to Friday: 7 a.m. to 3:30 p.m.

 

Corewell Health Zeeland Hospital Laboratory

8333 Felch St., Zeeland, 49464

Monday to Friday: 6 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

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