Bill 12 units (Q5108 = 0.5 mg/unit).

HCPCS Code Q5108: Injection, pegfilgrastim-jmdb (Fulphila®), biosimilar, 0.5 mg
Learn about HCPCS Code Q5108 for Fulphila®, its billing guidelines, documentation needs, and use in reducing febrile neutropenia risk.
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Frequently asked questions
No, Fulphila® is only available as a pre-filled syringe.
No. Fulphila® must be administered at least 24 hours after chemotherapy, which means billing for Q5108 also cannot occur on the same day as chemotherapy. Since billing is tied to the date of administration, the claim for Q5108 should reflect the day the drug is actually given—typically the day after chemotherapy.
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