Generally, if the facility is considered a nursing home, home for the aged, or similar institution, and your primary reason for being there is to get medical care, your lodging and meals are considered deductible medical expenses. You can read about the specifics in IRS Pub. 502- Medical Expenses, specifically page 9 (Lodging) and Page 11 (Nursing Home).
http://www.irs.gov/pub/irs-pdf/p502.pdf
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Wendy D. Rieger, Enrolled Agent