Following the assessment of viable no-fault patient accounts is the decision to pursue or not to pursue litigation.  There is no bright-line test to indicate whether a provider should or should not proceed on a given account.  Case by case assessments dictate the course of action.  Consider this: while a denied or underpaid account of $100 may, on its own, not be worthy of pursuing, it is an entirely different assessment if it is one of several hundred when, combined with others, makes litigation a worthy course of action.  Add to it no-fault interest and no-fault attorney fees and suddenly, a minor write-off has turned into an improved bottom line.