July 10th, 2015
When a Medicare carrier or RRB-named carrier receives a query reply from CMS that includes a disposition code 46 and a welfare administration carrier number, it transfers the claim to the welfare carrier and notifies the beneficiary. Any pertinent information received or developed is transferred with the claim.
This occurs only if there is a State welfare carrier and the individual is identified in the beneficiary master record as a State buy-in enrollee for that State. For more information on the definition of a welfare carrier, refer to Pub. 100-04, Chapter 1, section 10.1.7.