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Diagnostic Radiology Coding:

Round Up for Partial A9595 Units

Published on Thu Jun 05, 2025

Question: A provider injected a patient with 9.3 millicuries (mCi) of piflufolastat F-18 for a positron emission tomography (PET) scan. How do we bill the units of A9595 when a provider administers a portion of it?

California Subscriber

Answer: Bill 10 units of A9595 (Piflufolastat f-18, diagnostic, 1 millicurie) for your situation. Anything less of a full unit (e.g., 0.1 and up) should be rounded up to the next whole unit since the provider is opening and administering an additional unit of the diagnostic agent. Therefore, you’ll report 10 units for the 9.3 mCi administered.

Piflufolastat F-18, a radioactive diagnostic agent, is also known as the brand name Pylarify. Providers use the agent during PET imaging exams of prostate-specific membrane antigen- (PSMA-) positive lesions in patients with prostate cancer. PET imaging can localize the radiotracer following injection of the bolus intravenous agent.

Mike Shaughnessy, BA, CPC, Development Editor, AAPC

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