You can try this link to some good FAQs:

http://www.gamefaqs.com/console/ps2/game/30429.html

In looking through some of them, it looks like the code is generated randomly, so yours will be different from everyone elses.

Good luck squinting at those bloody numbers!

"Enter the second door from the left on the north wall to find yourself in a padded cell. Investigate the blood on the wall to find a 4-digit number. You now have the combination to the fourth lock on the box. This number is random, so it will not be listed here."