XE, XS, XP and XU, distinct service modifiers. Effective Jan. 1, 2015, four new modifiers more effectively identify distinct services that are typically considered inclusive to another service. Utilizing these modifiers will help with more accurate coding that better describes the procedural encounter.
The first nine numbers in the lower, left-hand part of your check after the MICR character is your routing number. 1  Be sure to exclude any preceding MICR characters when determining your routing number. 2  Following your routing number, the next set of numbers, up until the next MICR character, is your account number.
In some cases the order of the checking account number and check serial number is reversed. The easiest way to find your routing number is to look at your checks. It's easy to find Chase's ABA/routing number and your account number. They're printed across the bottom of your checks. Or if you prefer, call 1-800-242-7338 and we can tell you your ABA/routing number.