Clarifying Guidelines For Medical Billing Cardiac Rehab Difference in medical billing manuals have made cardiac rehab claim submission confusing. There are three manuals that give guidance on how to bill for cardiac rehab services. These manuals are the Medicare Coverage Issues Manual, Intermediary Manual, and Hospital Manual. Each on of these manuals gives a different method on how to bill for cardiac rehab. The Office of Inspector General realizes that this has become a major medical billing issue. Recently, an audit was done on thirty four different hospitals. The goals was to see where the consistencies and then confusion lie in billing for medical cardiac rehabilitation. The results were astonishing! …