From: ISS mapped from ICD-9-CM by a novel freeware versus traditional coding: a comparative study
Mean | Standard deviation | Median | Min-max | |
---|---|---|---|---|
Directly-calculated ISS | 24 | 11 | 22 | 1-59 |
ICDPIC-calculated ISS | 18 | 13 | 16 | 4-75 |
Number of AIS codes per patient | 5 | 3 | 4 | 1-14 |
Number of ICD codes per patient | 3 | 2 | 3 | 1-6 |