CMS released preliminary calendar year 2027 Clinical Laboratory Fee Schedule rates on September 21. They come from the second round of private payor data collected under PAMA, and the agency estimates about $1B in annual savings.

Of roughly 1,500 tests with calculated rates, more than 1,100 would be paid less and about 186 more. Chemistry tests drop about 16 percent on average. Molecular pathology and genomic sequencing face the deeper reductions. Proprietary laboratory analyses move just over 2 percent. Statute caps the cut at 15 percent per test per year through the phase in.

Comments are due 30 days from release. Final rates publish in November and take effect January 1, 2027. The American Clinical Laboratory Association said the cuts threaten seniors' access to lab services.

If your revenue model rests on a PLA code, pull the preliminary file and check the number now. The comment window is the only place to argue a crosswalk before the rate is set.