CPT 96365: IV infusion, first hour. What Medicare pays and what to ask
IV therapy lines can add up quickly. This page covers 96365, the first-hour IV infusion, and what to check.
What this code means
CPT 96365 is an intravenous infusion for therapy, prevention or diagnosis, for the first hour.
Normally only one initial IV service is reported per visit, unless a separate IV site was used.
Why the bill can be much higher than the Medicare rate
IV fluids and medications are billed on their own lines, in addition to this administration code.
Related codes cover extra hours and additional drugs, so several IV lines can appear for one treatment.
| If a line is billed at | It would be |
|---|---|
| 5x the Medicare rate | $335.70 |
| 10x the Medicare rate | $671.40 |
| 20x the Medicare rate | $1,342.80 |
The Medicare rate is a published benchmark, not a legal ceiling on what a provider may charge. Our free scan flags a line as worth a closer look when it is billed at more than 10 times the Medicare rate.
Questions worth asking before you pay
- Is 96365 the only initial IV service on the bill?
- How many hours of infusion were billed, and does that match the care I received?
- Which medications are on separate lines?
Check every line against the official Medicare rates in about a minute. The scan is free.
Related codes
Source: Medicare Physician Fee Schedule (CMS, July 2026 release), national payment amount, non-facility setting. Last updated October 2026. This page is general information, not legal or medical advice. Rates change each year and a hospital bill can include charges that the benchmark does not cover.