| Abbreviation | Definition |
|---|---|
| CertGenAvMed | Certificate of General Aviation Medicine |
| CertHSM | Certificate in Health Services Management |
| CertUnMed(RN) | Certificate of Underwater Medicine (Royal Navy) |
| CES | carbohydrate-electrolyte solution |
| CES | cat eye syndrome |
| CES | Center for Epidemiological Study |
| CES | central excitatory state |
| CES | Charities Evaluation Services |
| CES | cholesterol embolisation syndrome |
| CES | Chronic Ear Survey |
| CES | chronic electrophysiological study |
| CES | Compulsive Eating Scale |
| CES | congenital oesophageal stenosis |
| CESDI | Confidential Enquiry into Stillbirths and Deaths in Infancy |
| CESH | National Confidential Inquiry into Suicide and Homicide (by people with mental illness) |
| CESR | Certificate of Eligibility of Specialist Registration |
| CESR | core environmental stress response |
| CEX | clinical evaluation exercise |
| CF | calcaneofibular |
| CF | cardiac failure |