Here is the response I got from expressvu...can't fix something if you don't know what it is...

"Thank you for taking the time to contact us. Your inquiry is
appreciated.

I would be pleased to assist you with your inquiry. However, I was
unclear as to what "discrete code" you are interested in for the model
5100 receiver. It may be helpful to know that Bell ExpressVu does offer
discrete billing as well as a "HIDE" feature for subscribers. For
information about these services, please feel free to forward your
inquiry to my attention.

If you have any further questions or concerns please feel free to
contact us at our toll free number 1-888-SKYDISH. Our Customer Service
department is available 24 hours, 7 days a week, for technical concerns
and activations. For all other inquiries, our office hours are Monday to
Friday 8AM to 9PM, Saturday and Sunday 9AM to 6PM, your local time.

Thank you for choosing Bell ExpressVu as your satellite provider.