AMPDS codes recorded in prehospital data for ED attendees
| AMPDS code (text description) | No of ED episodes | Percentage of ED episodes |
| 12 (convulsions/fitting) | 3178 | 43.1 |
| Transfer from 111 | 327 | 4.4 |
| 31 (unconscious/passing out) | 231 | 3.1 |
| 35 (healthcare professional admission) | 192 | 2.6 |
| 28 (stroke/CVA) | 163 | 2.2 |
| 17 (falls/back injuries—traumatic) | 106 | 1.4 |
| 26 (sick person—specific diagnosis) | 83 | 1.1 |
| 6 (breathing problems) | 68 | 0.9 |
| Other AMPDS code (<50 individual patients) | 397 | 5.4 |
| Unlinked ED episode (no data available) | 1884 | 25.5 |
| Arrival at ED not by ambulance | 751 | 10.2 |
| Total | 7380 | 100 |
CVA, cerebrovascular accident.