For more information on this and other practice management issues, see athenahealth's
Practice Management Lab
"You Call That a Payment?" An article on zero-pays and what you can do about them from Physician Practice magazine.
Four percent of the average practice’s monthly billed charges are “paid” by insurers at zero dollars. These “zero-pays” are effectively the same as denials but are not recorded as such. Zero-pays typically occur because the payor claims that the service is part of a bundled or global service for which it has already paid.
Because zero-pays are typically related to payor-specific idiosyncrasies, there is little you can do to prevent them. But nearly three quarters of zero-pays can be successfully appealed.