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.
How to find a routing number on a check. On checks, bank routing numbers are a multi digit key that comes right before your bank account number. Both numbers are listed on the bottom left corner of the check. Both the routing number and account number are used to withdraw money from your account. Do not share your account number with others unless you trust the connection they make with your Wells Fargo Bank account.