Much of the revenue lost to uncompensated care is simply due to patients being uninsured or underinsured. Another part is simply never billed due to carelessness or overwhelmed in-house medical billing staff. But it is estimated that up to 10% of the self-pay accounts that get written off are actually covered by billable insurance or a government health care program. This represents a significant amount of providers’ revenue that, up until now, has been difficult to recover.