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What Does ICI Mean in Medical Terms?
ICI stands for immune checkpoint inhibitor. Immunotherapy class releasing brakes on immune cells.
immune checkpoint inhibitor
Immunotherapy class releasing brakes on immune cells.
Where you will see ICI
You will most often see ICI in medication orders and prescriptions, blood results and cancer treatment charts.
Example
A medication order might be written with “ICI” as shorthand for immune checkpoint inhibitor.
Related abbreviations
- 3% saline — three percent saline (hypertonic)
- 3D-CRT — three-dimensional conformal radiation therapy
- 4F-PCC — four-factor prothrombin complex concentrate
- 4Ts — 4Ts score
- 5-FU — fluorouracil
- 6-MP — mercaptopurine
- 6-TG — thioguanine
- 7+3 — seven plus three induction
Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.
Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.