Anesthesia for Colonoscopy/ EGD

When a physician bills for a Screening colonoscopy and also an EGD at the same time, Do you only bill the 00812 for screening colonoscopy or do you bill the 00812 and the 00731?  I can't find what is proper on the internet.  Any help would be appreciated.  Thank you in advance.

re: Anesthesia for Colonoscopy/ EGD

When billing multiple procedures during the same anesthetic administration, you will report the total time for both procedures and use the code representing the most complex procedure. Refer to the CPT guidelines for additional information.