| IBG | insoluble bone gelatin |
|---|---|
| IBI | intermittent bladder irrigation; ischemic brain infarction |
| ibid | in the same place [Lat. ibidem] |
| IBIDS | ichthyosis-brittle hair-impaired intelligence-decreased fertility-short stature [syndrome] |
| IBK | infectious bovine keratoconjunctivitis |
| IBM | inclusion body myositis |
| IBMP | International Board of Medicine and Psychology |
| IBMX | 3-isobutyl-1-methylxanthine |
| IBNR | incurred but not reported |
| IBP | insulin-like growth factor binding protein; International Biological Program; intra-aortic balloon pumping; iron-binding protein |