| Abbreviation | Definition |
|---|---|
| IDSI | Infectious Diseases Society of Ireland |
| IDSP | Integrated disease surveillance program |
| IDSP | Integrated Disease Surveillance Programme |
| IDSP | Integrated Disease Surveillance Project |
| IDSP | Integrated Diseases Surveillance Project |
| IDSS | Iowa Disease Surveillance System |
| IDTO | Infectious Disease Trends in Ontario |
| IDZ | Infectious Disease Zone |
| IEDCR | Institute of Epidemiology Disease Control and Research |
| IEDCR | Institute of Epidemiology Disease Control Research |
| IEDCR | Institute of Epidemiology, Disease Control and Research |
| IFALD | Intestinal Failure Associated Liver Disease |
| IFRD | Idiopathic Fatal Renal Disease |
| IGMD | Institute for Genetic Metabolic Disease |
| IHD | Ischaemic heart disease |
| IIAD | Institute for Infectious Animal Diseases |
| IJCD | International Journal of Celiac Disease |
| IJCD | International Journal of Chronic Diseases |
| IJCD | International Journal of Colorectal Disease |
| IJO | Idiopathic Juvenile Osteoporosis |