HCPCS Code Q5103: Injection, infliximab-dyyb, biosimilar (Inflectra®), 10 mg

Maximize reimbursement for HCPCS Q5103. Our guide covers documentation and billing for Inflectra® to ensure accurate claims.

Use Code

Frequently asked questions

You should bill 40 units of Q5103, since each unit equals 10 mg. Always confirm that the billed amount matches the documented infusion dose in the medical record.

No. As of April 1, 2018, CMS discontinued the requirement for manufacturer-specific modifiers (such as ZB). You only need to report Q5103 for Inflectra® along with the correct NDC and number of units.

No. J1745 is specific to Remicade® (the reference product), while Q5103 is for Inflectra®. Claims must reflect the exact product administered to avoid denials.