Agreement for exact ISS
| Patients with the following ISS ranges (by abstracted codes) | Agreement for exact ISS between abstracted AIS codes and ICD-9-CM-AIS map (%) | Agreement for exact ISS between abstracted AIS codes and ICD-10-CM-AIS map (%) |
| ISS 1–4 | 71 | 78 |
| ISS 5–14 | 53 | 64 |
| ISS 15–24 | 21 | 23 |
| ISS 25+ | 18 | 9 |