Thursday, October 8, 2026

Brief Blog: How Whole Slide Imaging Codes Fared in PAMA

Header: I spot-checked 9 PLA codes that include whole slide imaging (sometimes naming computer interpretation) and only 1 of 9 has PAMA repricing data.  (2 were ADLTs).  

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This is a quick-and-dirty blog.  I was wondering how whole-slide-imaging slides fared in the PAMA pricing process this fall.  I had a list of about 9 codes I'd tracked as WSI codes.  (In some cases, it's hard to tell if the biomarker slides are newly produced for the coded service or were pre-existing (88342).

Two of them are ADLT codes (Castle 0108U and Prelude 0295U), which don't show up in PAMA data at all.

Of the other codes, 0376U dropped from $706 today to $692 in PAMA data. 

That leaves 6 of 9 codes.  None of the remaining tests had PAMA data, so CMS simply leaves the PAMA median price blank.   (Such codes may get crosswalked or gapfilled, TBD).

Click to enlarge.


I gave the above table to Chat GPT and asked it to fill in the empty rows with test names. Click to enlarge.