Anytime an encounter note is signed off on, it records on the Meaningful Use Wizard for the provider that finalized the note. There is no way to exclude encounters from the Meaningful Use Wizard unfortunately, however, since this does sound like it is happening often there are still ways you can ensure that you get credit for the proper measures in MU. For example, measures such as ePrescribing only increase when you are prescribing. The same goes for Medication, Lab, and Radiology orders as they only increase in both numerator and denominator when you perform the necessary functions. If you don't do these during the procedure appointment, they are not positively or negatively increasing at all.
Specifically, the measures that would be affected by signing an encounter (meaning the denominator will increase) deal with the patient portal. My suggestion for this is to create a portal account for the patient if they do not have one in the system already and then send their Full Patient Record to the portal as well as a secure message to indicate what was done in the procedure so they also have that in their portal (both done from the Summary Sheet of a patient chart). This way you are still getting credit for these on the Meaningful Use Wizard regardless of what the appointment was for.
Separately, the only other measure that the denominator increases with a signed encounter is the Patient Educational Resources. I imagine that not every procedure visit has Patient Education materials to go with it but if it does then simply check the box above the Plan to indicate "Patient Education Given". This measure has a 10% threshold so even if you can't complete it all the time it shouldn't be detrimental to your numbers.
In the past when Meaningful Use had more measures to worry about that were affected by encounter sign off and this would have been a bit more difficult to work around but it is certainly achievable now that the portal is the main concern when it comes to encounters being calculated.
The only other suggestion would be the addendum option, which doesn't seem to be the best for what you are trying to do.
I hope this information is helpful for you, please let me know if you have further questions or concerns.
