AMA CPT® Assistant - 2007 Issue 12 (December)
Pathology and Laboratory (December 2007)
December 2007 page 14b Bonus Feature:Pathology and Laboratory Question: Is it necessary to use modifier 59, Distinct procedural service, when laboratory tests contain the same CPT code more than once? For example, flow cytometry studies may involve reporting 88184 and 88185 x3. Would modifier 59 be appended to the second and third use of 88185? Answer: From a CPT coding perspective, it is not necessary to append modifier 59, Distinct procedural service, to CPT add-on codes because these codes represent additional or incremental work associated with the basic procedure performed. Code 88185, Flow cytometry, cell surface, cytoplasmic, or nuclear...
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