| Abbreviation | Definition |
|---|---|
| BHSF | Birmingham Hospital Saturday Fund |
| BHU | Bed Head Unit |
| BI | Battlefield Injury |
| BI | Behavioral Intervention |
| BI | Bone Index |
| BI | Burns Institute |
| BIAC | Brain Imaging and Analysis Center |
| BIBA | Brought In By Ambulance |
| BICU | Burn Intensive Care Unit |
| BID | Background Information Document |
| BID | Beth Israel - Deaconess |
| BID | Bis In Die (Twice Daily) |
| BIDH | Beth Israel Deaconess Hospital |
| BIH | Beth Israel Hospital |
| BIRF | Biomedical Imaging Resource Facility |
| BISS | Blood Injection Symptom Scale |
| BIW | Before I Wake |
| BJAH | Bayne Jones Army Community Hospital |
| BJH | Barnes Jewish Hospital |
| BKAH | Bissonnet Kirby Animal Hospital |