Posted Date
Effective Date
Update Type
Test Discontinued
CPT Code
88377-TC
Order Code
MROS1
Referral Laboratory
Mayo Medical Laboratories
TEST CHANGE
ROS1 (6q22) Rearrangement by FISH
Order Code: MROS1
Fee Code: NA049 (CPT 88377-TC)
Effective, January 26, 2026, MLabs Cytogenetics Laboratory will discontinue the FFPE FISH testing: ALK Rearrangement for NSCLC by FISH, ROS1 (6q22) Rearrangement by FISH, RET (10q11) Rearrangement by FISH, and MET Amplification by FISH as they are currently evaluated by the following panels: Lung Cancer NGS Panel, Colorectal Cancer NGS Panel, Melanoma NGS Panel, and Solid Tumor NGS Panel.