| IHS | 1) International Headache Society 2) Intelligent Hospital System |
|---|---|
| ACHA | American College of Hospital Administrators |
| ACOHA | American College of Osteopathic Hospital Administrators |
| AH | abdominal hysterectomy; absorptive hypercalciuria; accidental hypothermia; acetohexamide; acid hydro... |
| AHDMS | automated hospital data management system |