| AHI | active hostility index; Animal Health Institute; apnea-plus-hypopnea index |
|---|---|
| aI | active ingredient |
| AI-CAH | autoimmune-type chronic active hepatitis |
| ALE | active life expectancy; allowable limits of error; amputated lower extremity |
| 'Greek letter alpha' | angular acceleration; first [carbon atom next to the carbon atom bearing the active group in organic... |
| ICN | Intensive Care Nursery |
|---|---|
| ICFs | Intermediate Care Facilities |
| ICHPPC | International Classification of Health Problems in Primary Care |
| I.C.P.C. | International Classification of Primary Care |
| JCAHO | Joint Commission on the Accreditation of Health Care Organizations |