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.
Dissecting Check Numbers. Look at the lower left-hand part of a check and you'll see a long string of digits. The checking account number is embedded in this string. Starting from the left, the first nine digits are the bank's routing number. Routing numbers are assigned by the American Bankers Association and identify the bank that holds your checking account. After the routing number is a non-numeric symbol and then another group of four to 13 digits.