| Abbreviation | Definition |
|---|---|
| CI | chest infection |
| CI | chronic infection |
| CI | chronic inflammation |
| CI | cimetidine |
| CI | ciprofloxacin |
| CI | circulatory insufficiency |
| CI | clinical impression |
| CI | clinical improvement |
| CI | clinical index |
| CI | clinical indicator |
| CI | clinical instructor |
| CI | coagulation index |
| CI | cognitive impairment |
| CI | cold ischaemia |
| CI | conditioned inhibition |
| CI | continued insomnia |
| CI | continuous imaging |
| CI | continuous infusion |
| CI | continuous irradiation |
| CI | coronary insufficiency |