YamiliaNelson
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I code pathology, I have mutilple biopsy of a prostate...up to 18 specimens at one time. I found out thru Medicare trial and error that 12 units are accepted on one line. If I have 18 specimens, I split the line and add the 59 modifier to any additional to the 12 that I know will be paid. Question is 59 modifier good to use or should i be using the 91 modifier? Currently the service are paid when using the 59, but in a class review I learned about 91 and now I am second guessing the 59.