| P1 | Normal healthy patient |
| P2 | Patient w/mild syst disease |
| P3 | Patient w/severe sys disease |
| P4 | Pt w/sev sys dis threat life |
| P5 | Pt not expect surv w/o oper |
| P6 | Brain-dead pt organs removed |
| PA | Surgery, wrong body part |
| PB | Surgery, wrong patient |
| PC | Wrong surgery on patient |
| PD | Inp admit w/in 3 days |
| PI | Pet tumor init tx strat |
| PL | Progressive addition lenses |
| PM | Post mortem |
| PS | Pet tumor subsq tx strategy |
| PT | Clrctal screen to diagn |
