| Abbreviation | Definition |
|---|---|
| AAHC | African American Health Coalition |
| AAHC | American Accreditation Healthcare Commission |
| AAHV | Animal Avian Hospital Of The Village |
| AAKH | Ain Al Khaleej Hospital |
| AAMAP | AIDS Agency Management Assistance Project |
| AAMC | Anne Arundel Medical Center |
| AAMRO | American Association For Medical Review Officers |
| AAMRO | American Association Of Medical Review Officers |
| AAMX | AcetoAcet M Xylidide |
| AANHS | Alaska Area Native Hospital Service |
| AANP | American Academy of Nurse Practitioners |
| AAPP | All Alaska Pediatric Partnership |
| AAPPO | American Association of Preferred Provider Organizations |
| AARC | Alberta Association of Rehabilitation Centres |
| AART | Anticipation Availability Responsiveness and Transitions |
| AAS | Acute Abdominal Series |
| AAS | Androgenic Anabolic Steroids |
| AASM | American Academy of Sleep Medicine |
| AATB | American Association of Tissue Banks |
| AATD | Association of Agencies for Treatment and Development |