| Abbreviation | Definition |
|---|---|
| ASC | Ambulatory Surgical Center |
| ASC(s) | Ambulatory surgery center(s) |
| ASCT | Autologous Stem Cell Transplant |
| ASDH | Alexandria Specialist Day Hospital |
| ASH | American Society of Hematology |
| ASHA | American Schools and Hospitals Abroad |
| ASHC | Arthritis Self Help Course |
| ASHS | American Shared Hospital Services |
| ASIH | Absent Sick In Hospital |
| ASK | Assault Survivor Kit |
| ASMC | area support medical company |
| ASP | Atamai Surgical Planning |
| ASP | Awareness during Sleep Paralysis |
| ASP(S) | Antibiotic Stewardship Program(s) |
| ASPN | AIDS Service Provider Network |
| ASPN | Ambulatory Sentinel Practice Network |
| ASR | Ambulatory Services Representative |
| ASRH | Acute Stroke Ready Hospital |
| ASTDA | American Sexually Transmitted Diseases Association |
| ASV | Activity Support Vehicle |