| Abbreviation | Definition |
|---|---|
| CHEMO | Chemotherapy |
| CHG | Change |
| CHI | Closed Head Injury |
| CHIP | Cardio Health Improvement Project |
| CHIP | Cardiovascular Health Intervention Program |
| CHIP | Coronary Health Improvement Program |
| CHO | carbohydrate |
| CHO | Chinese hamster ovary [cell(s)] |
| CHP | Circular Hand Path |
| CHR | Chronic |
| CHR | Chronological |
| CHR | Corticotropin Releasing Hormone |
| CHRE | Combined Hand Reactive Exertion |
| CHROM | Chromium |
| CHRPE | Congenital Hypertrophy of Retinal Pigment Epithelium |
| CHT | Combined Hormone Therapy |
| CI | Cardiac Insufficiency |
| CI | Cerebral Infarction |
| CI | Cochlear Implant |
| CI | Contra Indications |