| Abbreviations | Meaning |
 | ICONIP | International Conference On Neural Information Processing |
 | ICONS | Interagency Conference On Nursing Statistics |
 | ICP | Institute For Clinical PET |
 | ICP | International College Of Prosthodontists |
 | ICP | International Council Of Psychologists |
 | ICPA | International Chiropractic Pediatric Association |
 | ICPA | International Commission On Penicillium And Aspergillus |
 | ICPC / CISP | International Classification Of Primary Care / Classification Internationale Des Soins De Santé Primaires |
 | ICPD | International Conference On Population And Development |
 | ICR | Institute Of Cancer Research |
 | ICR | Institute Of Clinical Research |
 | ICR | Islet Cell Resource Centers |
 | ICRC / CICR / CICR | International Committee Of The Red Cross / Comité International De La Croix-Rouge / Comité Internacional De La Cruz Roja |
 | ICRCS / CBCRI | Initiative Canadienne Pour La Recherche Sur Le Cancer Du Sein / Canadian Breast Cancer Research Initiative |
 | ICRDB | International Cancer Research Databank Branch |
 | ICRF | Imperial Cancer Research Fund |
 | ICRIN | Injury Control Resource Information Network |
 | ICRP | International Commission On Radiological Protection |
 | ICRU | International Commission On Radiation Units And Measurements |
 | ICRW | International Center For Research On Women |
 | ICS | Infirmières Conseillères De Santé |
 | ICS | Intensive Care Society |
 | ICS | International Cloning Society |
 | ICS | International College Of Surgeons |
 | ICS | International Continence Society |
 | ICS UK | International Continence Society (UK Section) |
 | ICSC | International Chemical Safety Cards |
 | ICSCN | International Consortium Of Stem Cell Networks |
 | ICSF | Integrated Care System France |
 | ICSI / CICH | Institut Canadien De La Santé Infantile / Canadian Institute Of Child Health |
 | ICSP / CPSI | Institut Canadien Pour La Sécurité Des Patients / Canadian Patient Safety Institute |
 | ICSR | Individual Case Safety Report |
 | ICSSPE / CIEPSS | International Council Of Sport Science And Physical Education / Conseil International Pour L'Éducation Physique Et La Science Du Sport |
 | ICSTI / CIPIST | International Council For Scientific And Technical Information / Conseil International Pour L'Information Scientifique Et Technique |
 | ICSU | International Council For Science [Previously International Council Of Scientific Unions] |
 | ICSW | International Council On Social Welfare |
 | ICTRP | International Clinical Trials Registry Platform. Système D'enregistrement International Des Essais Cliniques. Plataforma De Registros Internacionales De Ensayos Clínicos. |
 | ICTV | International Committee On Taxonomy Of Viruses |
 | ICVTS | Interactive CardioVascular And Thoracic Surgery [periodical] |
 | ICWID | International Conference On Women And Infectious Diseases |
 | ID | Implant Dentistry [periodical] |
 | IDA | Indiana Dental Association |
 | IDA | Iowa Dental Association |
 | IDA | Irish Dental Association |
 | IDAA | International Diabetic Athletes Association |
 | IDAA | International Doctors In Alcoholics Anonymous |
 | IDC | Infectious Diseases In Children [periodical] |
 | IDC | International Diabetes Center |
 | IDCP | Infectious Diseases In Clinical Practice [periodical] |
 | IDEA | Individuals With Disabilities Education Act |