AMA CPT® Assistant - 1996 Issue 7 (July)

Pathology and Laboratory, 85576 (Q&A) (July 1996)

July 1996 page 10a Coding Consultation Pathology and Laboratory, 85576 (Q&A) Question It is clear that CPT code 85576, Platelet; aggregation (in vitro), each agent, is intended to be reported for each agent. However, if four different agents are used (eg, adenosine diphosphate [ADP], collagen, epinephrine and four dilutions of ristocetin [1.25%, 1.0%, .75% and .50%]) how would this be reported? AMA Comment From a CPT coding perspective, each dilution of a specific agent warrants a separate code assignment, because each dilution constitutes a separate test/separate agent. Therefore, platelet aggregation (in vitro) using ADP, collagen, epinephrine...

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