General Question for the Week of August 28, 2023


What is the difference between concurrent and sequential infusions?


Concurrent infusions are the simultaneous infusion of multiple drugs/substances, or multiple drugs/substances mixed in the same bag administered simultaneously, through the same access site. These are billed once per encounter, regardless of the number of concurrent infusions. No time increments apply to concurrent infusions and the billing of additional hours does not apply to concurrent infusions. There is no CPT® option for concurrent administration by SQ/IM or IVP injection and there is no CPT option for concurrent chemotherapy administrations. Sequential infusions are drugs/substances that are administered back-to-back, or one after another, through the same IV access site as the initial infusion. For sequential infusions, there should be clear indications in the documentation of one drug/substance ending and the next one beginning. These are billed once per different drug/substance administered and time increment rules do apply. Additional hour(s) of administration are billable for sequential drugs/substances.

This question was answered in our Coding Essentials for Infusion & Injection Therapy Services. For more hot topics relating to infusion services, please visit our store or call us at 1.800.252.1578, ext. 2.

Print Friendly, PDF & Email

CPT® copyright 2022 American Medical Association (AMA). All rights reserved.

Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

CPT is a registered trademark of the American Medical Association.