Recovery Audit Contractor Overpayments: Pulmonary Diagnostic Testing and E/M Services CMA has recently learned that RAC contractor Health Data Institute (HDI) is currently assessing overpayments for evaluation and management services billed without a modifier -25 on the same day as a diagnostic pulmonary study. Affected claims have dates of service of 2009 or 2010. October 24, 2012 News, Payment Pulmonary Diagnostic Testing, RAC overpayment 0 0 Comment Read More »