This study focused on two periods: the period of manual coding (year 2007) and the period of computerized coding (year 2008) which covered a total of 1403 ICU patients. The time spent on the coding process, the rate of coding errors (defined as patients missed/not coded or wrongly identified as undergoing major procedure/s) and the financial impact were evaluated for these two periods.Results: With computerized coding, the time per admission decreased significantly (from 6.8±2.8min in 2007 to 3.6±1.9min in 2008, p (Source: International Journal of Medical Informatics).