Long-Term Acute Care: Medicare Part A Coverage, Costs, and Rules

Medicare Part A is the primary payer for long-term acute care hospital stays, and its coverage rules for LTACHs are the same ones that apply to any inpatient hospital admission — with one twist that catches most families off guard. Your LTACH days do not restart the clock. They continue the benefit period that began the moment you were first admitted to the short-term hospital, which means the deductible, the coinsurance tiers, and your lifetime reserve days are all already in motion when you arrive. In 2026, the Part A deductible is $1,736 per benefit period, and coinsurance begins on day 61.

How Part A Pays for an LTACH Stay

Medicare pays LTACHs under the Long-Term Care Hospital Prospective Payment System, which sets a fixed payment based on the patient’s diagnosis and severity rather than a daily rate.1Centers for Medicare & Medicaid Services. Long-Term Care Hospital PPS From the patient’s side, what matters is that Part A treats an LTACH as an acute care hospital. That’s not a marketing label. LTACHs hold the same acute care hospital certification as any general hospital and must meet the same Medicare Conditions of Participation.2Noridian Medicare. Long Term Care Hospital (LTCH) – JF Part A The regulatory feature that defines them is an average Medicare inpatient length of stay above 25 days.

Because Part A treats the LTACH as a hospital, your cost-sharing follows the standard benefit-period structure. A benefit period begins on the day you are admitted as an inpatient and ends only after you have gone 60 consecutive days without any inpatient hospital or skilled nursing facility care. If you transfer from a regular hospital directly to an LTACH, or you’re admitted to the LTACH within 60 days of a prior hospital discharge, you’re still in the same benefit period. You do not owe a second deductible.3Medicare.gov. Long-term Care Hospital Services

The flip side: every day you spent in the previous hospital counts toward the thresholds that raise your out-of-pocket cost. If you were in a regular hospital for 15 days before the transfer, your first LTACH day is day 16 of the benefit period, not day 1.3Medicare.gov. Long-term Care Hospital Services

What You Pay in 2026

For 2026, Medicare Part A cost-sharing works in tiers based on days in the benefit period:

Consider what this means in practice. A patient who spent 30 days in a regular hospital before transferring to an LTACH reaches day 61 of the benefit period after just 31 days at the LTACH. Coinsurance of $434 per day kicks in from that point. Over a 25-day stretch at that rate, the bill runs $10,850, and the meter keeps running. This is the single biggest financial surprise families run into with LTACH care. Before the transfer, ask the discharging hospital’s financial counselor to map out where you already sit in the benefit-period timeline.

Lifetime Reserve Days

Once you cross day 90, Medicare draws from your lifetime reserve days. You get 60 of them across your entire life. They do not renew. Each one costs $868 per day in 2026.5Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles If a lengthy hospital stay preceded your LTACH admission, you can burn through reserve days faster than you expect. Track them. Once they’re spent, any future hospital stay past day 90 is entirely on you until a new benefit period begins.

The Site-Neutral Rule That Can Block Admission

Coverage rules also affect whether an LTACH will take you at all, and this is where families often hit an invisible wall. Since 2020, Medicare pays LTACHs a reduced “site-neutral” rate — comparable to what a regular hospital would receive — for patients who don’t meet specific clinical thresholds. LTACHs lose money on those admissions, so the rule shapes who gets in.

To qualify for the full LTACH payment rate, a patient must meet at least one of two criteria:6eCFR. 42 CFR 412.522 – Application of Site Neutral Payment Rate

  • At least 3 days in an intensive care unit or critical care unit during the immediately preceding hospital stay, or
  • At least 96 hours of mechanical ventilation during the LTACH stay itself.

If neither applies, the LTACH receives the lower site-neutral payment. Some facilities will decline the admission on that basis even when the patient could clinically benefit from LTACH-level care. Ask the transferring hospital’s case manager whether the patient meets either criterion before assuming an LTACH bed is a live option.

Who LTACHs Are Designed to Treat

LTACH admission is for patients with complex, ongoing medical needs that a skilled nursing facility or rehabilitation center cannot safely handle. Typical situations include prolonged dependence on a mechanical ventilator, multi-system organ failure, severe wounds requiring specialized protocols, or complex infections needing extended intravenous therapy. Two conditions have to hold: the patient still requires the kind of daily physician oversight and hospital-grade equipment only an acute care hospital provides, and there is a realistic expectation of enough improvement to eventually transition to a less intensive setting. LTACHs are not custodial nursing homes, and the word “long-term” in the name refers to length of stay, not to permanent placement.

Private Insurance and Medicaid

The Part A rules above apply to traditional Medicare. Private insurance plans, including Medicare Advantage plans, cover LTACH care under their own terms and almost always require pre-authorization plus a formal determination of medical necessity before the transfer. Copays, length-of-stay limits, and network rules vary. Get the authorization confirmed in writing through the LTACH’s admissions coordinator before agreeing to move.

Medicaid coverage for LTACH stays varies by state, and each state program sets its own rules. If you qualify for both Medicare and Medicaid, Medicaid may pick up the Medicare cost-sharing that would otherwise pile up during a long stay. The hospital’s financial counselor or your state Medicaid office can tell you where you stand.

If You Think You’re Being Discharged Too Soon

Medicare gives you the right to challenge a discharge you believe is premature, and the deadline is tight enough that it needs to be on your radar from day one. Within two calendar days of admission, the LTACH must give you an Important Message from Medicare notice explaining your appeal rights, and you receive a follow-up copy before discharge.7Centers for Medicare & Medicaid Services. Final Rule – Notification of Hospital Discharge Appeal Rights

To appeal, contact your regional Quality Improvement Organization (QIO) by midnight on the day of your planned discharge. If you file on time, you are protected from financial liability beyond normal coinsurance until at least noon on the day after the QIO issues its decision. The hospital must send the QIO your medical records by noon the following day, and the QIO issues its determination within one working day of receiving them.7Centers for Medicare & Medicaid Services. Final Rule – Notification of Hospital Discharge Appeal Rights Miss the midnight deadline and you can still request a review during your stay, but the QIO has two working days to respond and you may face charges during that window. The QIO phone number is on the Important Message notice.

Verify the Facility Before You Transfer

Confirm that the facility you’re being sent to is actually certified as an LTACH. The CMS Care Compare tool on Medicare.gov lists long-term care hospitals by location along with quality metrics such as infection rates and readmission rates.8Centers for Medicare & Medicaid Services. Long-Term Care Hospital Quality Reporting Program If a facility calls itself a “long-term care hospital” but doesn’t appear in the CMS database, treat that as a warning sign and ask the discharging hospital’s case manager to clarify what certification the receiving facility actually holds. Coverage under Part A depends on the certification, not the name on the door.