Patient State (PS) classification for patients admitted to the emergency department
| PS class | Description |
| PS1 | Patient with moderate treatment, discharged from emergency department. |
| PS2 | Patient with major treatment, discharged from emergency department. |
| PS3 | Patient with moderate treatment, hospitalised after emergency department stay. |
| PS4 | Patient with major treatment, hospitalised after emergency department stay. |
| PS5 | Patients requiring immediate treatment, not elsewhere classified. |
| PS6 | Patients requiring immediate intensive care/resuscitation. |
| PS7 | Died in emergency department. |