| ACOM | American College of Occupational Medicine; anterior communicating [artery] |
|---|---|
| ACOMS | American College of Oral and Maxillofacial Surgeons |
| ACOOG | American College of Osteopathic Obstetricians and Gynecologists |
| ACOP | American College of Osteopathic Pediatricians; approved code of practice |
| ACOS | American College of Osteopathic Surgeons; associate chief of staff |