Is it necessary to use modifier 59, Distinct procedural service, when laboratory tests contain the

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?

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CPT Knowledgebase - Jan 8, 2008