I am having some issues with getting payment from Medicare Advantage plans for non-hospice related claims. My physicians do not bill for hospice related diagnosis and are not hospice physicians. The claims I bill have the appropriate GW modifier and some will pay while others deny stating bill traditional Medicare. On several that have paid I am now receiving a request for monies back referring to the CMS Processing Manual CH. 11. Section 30.4 which states to bill traditional Medicare. However, if you read just below that section in the billing sub-category is states to bill non-hospice related claims with the appropriate GW, GV modifiers. Perhaps I'm misinterpreting the CMS Manual and am looking for clarification. I would greatly appreciate any advice!