This is the date when the current edition of a book will be replaced by the next edition. Sometimes you will see DUE MM/YY, which indicates this is the edition of the book that will replace the prior edition on the date listed.

If it is a newer edition it will have a serial number. 2011 and prior do not have the serial numbers.

It was available only through pre-order, but could've been purchased at any GameStop location (prior to November 15th).

The Signature Edition was available only if you pre-ordered the game prior to January 12, 2011.

So, no. Your best bet is to try and find it on eBay or any similar auction sites when it comes out.

CPT or Current Procedural Terminology is maintained by the American Medical Association. Updates are generally issued annually, however, clarifications may be made periodically to provide guidance to the provider community. Each year a new edition of CPT is released at which time new code are issued and other codes are retired (deleted). These changes from the prior edition are noted in current edition.