How to identify Pricing Condition exclusions for many orders

Hi

I have a vast number of orders and I'd like to find out how I could find out which of these orders had line items where a specific price condition was excluded.

Going by the exclusion rule alone won't work as the condition is a pricing uplift which may not have been on the order to start with.

Is there a method, tables or means to determine price conditions excluded for mutiple orders ?

thanks

gino