| AACC | American Association for Clinical Chemistry |
|---|---|
| AACCN | American Association of Critical Care Nurses |
| AACG | acute angle closure glaucoma |
| AACHP | American Association for Comprehensive Health Planning |
| AACIA | American Association for Clinical Immunology and Allergy |
| AACN | American Association of Colleges of Nursing; American Association of Critical-Care Nurses |
| AACP | American Academy of Cerebral Palsy; American Association of Colleges of Pharmacy |
| AACPDM | American Academy for Cerebral Palsy and Developmental Medicine |
| AACSH | adrenal androgen corticotropic stimulating hormone |
| AACT | American Academy of Clinical Toxicology |