The Secretary shall establish under this subchapter a Medicare Improvement Fund (in this section referred to as the “Fund”) which shall be available to the Secretary to make improvements under the original medicare fee-for-service program under parts A and B for individuals entitled to, or enrolled for, benefits under part A or enrolled under part B including, but not limited to, an increase in the conversion factor under section
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(d) of this title to address, in whole or in part, any projected shortfall in the conversion factor for 2014 relative to the conversion factor for 2008 and adjustments to payments for items and services furnished by providers of services and suppliers under such original medicare fee-for-service program.