Medicare will revise the Medicare Benefit Policy Manual to correct suggestions that Medicare coverage is dependent on a beneficiary "improving." New policy provisions will state that skilled nursing and therapy services necessary to maintain a person's condition can be covered by Medicare.
For decades, Medicare beneficiaries – particularly those with long-term or debilitating conditions and those who need rehabilitation services – have been denied necessary care based on the "Improvement Standard".
http://www.medicareadvocacy.org/hidden/highlight-improvment-standard/