| A | B |
| DDS | Doctor of Dental Surgery |
| DI | Diagnostic Imaging |
| DICOM | Digital Imaging and Communications in Medicine |
| DMD | Doctor of Dental Medicine |
| DME MAC | Durable Medical Equipment Medicare Administrative Contractor |
| DMECS | Durable Medical Equipment Coding System |
| DMEPOS | Durable Medical Equipment, Prosthetics, Orthotics and Supplies |
| DMERC | Durable Medical Equipment Regional Carrier |
| DNV | Det Norske Veritas |
| DO | Doctor of Osteopathic Medicine |
| DOB | Date of Birth |
| DOD | (1) Date of Death; (2) Date of Discharge; (3) Department of Defense |
| DPM | Doctor of Podiatric Medicine |
| ED | Emergency Department |
| EHR | Electronic Health Record |
| eMDR | Electronic Medical Device Recording |
| EMR | Electronic Medical Record |
| EMS | Emergency Medical Services |
| EMT | Emergency Medical Technician |
| ENT | Ear, Nose and Throat |
| ePHI | Electronic Protected Health Information |
| ER | Emergency Room |
| FDA | Food and Drug Administration |
| FFS | Fee-for-Service |
| GICU | Geriatric Intensive-Care Unit |