I got to the point with Carius and got through to the door to the next area, but the key isn't in the chest. I've never had this before. Anyone have a comprehensive list of item codes that I could use to additem the key? Your help is greatly appreciated

Giftig

The item's ID is key_hircine1

Thank you very much. I did a bunch more digging and found this cool site http://www.uesp.net/morrow/bloodmoon/hints/bmitemtable.shtml

Amazing what you can do if you spend another ten minutes exploring google a bit deeper. Thanks for helping despite my noobishness.