The mechanism: Two obscure but load-bearing Medicare add-ons — the Medicare-Dependent Hospital (MDH) program and the Low-Volume Hospital (LVH) payment adjustment, which currently pays qualifying rural facilities up to a 25% per-discharge bump — expire December 31, 2026 unless Congress reauthorizes them in a year-end package. CMS pegs the combined value at roughly $0.4-0.5 billion annually. That's rounding error for the federal budget and life-support money for the ~1,000 rural hospitals that qualify. Congress has let this clock run down and re-extended it at the last minute repeatedly since 2010; the House's Save America's Rural Hospitals Act and a bipartisan Grassley-Bennet bill both aim to extend related rural payment models, but neither is law yet. Every lapse-then-patch cycle forces rural operators to run a few quarters blind on reimbursement, and it's the for-profit operators — not the nonprofits sitting on 501(c)(3) tax exemptions, DSH-heavy state supplemental pools, and philanthropic reserves — who feel it fastest in EBITDA.