An inpatient rehabilitation facility (IRF) is a hospital or a specialized unit within a hospital where patients receive intensive therapy to recover function after a serious illness, injury, or surgery. Unlike a standard hospital stay focused on treating the medical problem itself, an IRF focuses on rebuilding your ability to do everyday activities like walking, dressing, eating, and bathing. Patients typically receive at least 3 hours of therapy per day, 5 days a week, making it one of the most intensive rehab settings available.
Who Gets Admitted to an IRF
IRFs treat patients recovering from conditions that cause significant loss of physical function. To maintain its federal designation, a facility must admit at least 60% of its patients from a specific list of 13 qualifying conditions. These include stroke, spinal cord injury, brain injury, hip fracture, amputation, major multiple trauma, burns, and neurological disorders like multiple sclerosis, Parkinson’s disease, and muscular dystrophy. Joint replacements (knee or hip) also qualify under certain circumstances, such as bilateral surgery or cases with additional complicating factors.
Severe forms of arthritis and autoimmune conditions involving joint inflammation can qualify too, but only when the patient has already tried less intensive therapy without improvement. The common thread across all these conditions is that the patient needs coordinated, intensive rehabilitation to regain independence, and lighter levels of care won’t be enough.
The Preadmission Screening Process
You can’t simply check yourself into an IRF. Before admission, a screening evaluates whether intensive rehab is appropriate for you. This screening documents your level of function before the event that caused your decline, how much improvement is realistically expected, and how long that recovery should take. It also covers your risk for medical complications, the specific therapies you’ll need (physical therapy, occupational therapy, speech therapy, or prosthetics and orthotics), and where you’re expected to go after discharge.
A rehabilitation physician must review and agree with these findings before the admission moves forward. If you’re being transferred directly from a hospital after surgery or an acute illness, the screening often happens while you’re still in the hospital bed. The goal is to confirm that you’re medically stable enough to handle 3 hours of daily therapy but still impaired enough to genuinely need that level of care.
What a Typical Day Looks Like
The defining feature of an IRF is intensity. The standard requirement is at least 3 hours of therapy per day, at least 5 days a week. In some cases, the schedule can be structured as 15 hours of therapy spread across a 7-day period instead. This is far more demanding than what you’d get in a skilled nursing facility or through home health visits.
Therapy sessions are divided among different disciplines depending on your needs. Physical therapy focuses on mobility, balance, strength, and walking. Occupational therapy works on self-care tasks like getting dressed, bathing, and using the bathroom. Speech-language therapy addresses communication difficulties and swallowing problems, which are common after stroke or brain injury. Between sessions, you’re resting, eating, and receiving nursing care and medical monitoring. It’s a full day, and patients often describe it as exhausting, especially in the first week.
A team of specialists coordinates your care. This typically includes a rehabilitation physician, rehab nurses, physical and occupational therapists, a speech therapist if needed, a social worker, and a dietitian. The team meets regularly to review your progress, adjust your therapy plan, and start planning for discharge. Unlike a skilled nursing facility, which is primarily staffed by nurses, an IRF provides ongoing medical supervision from physicians alongside this full therapy team.
How Progress Is Measured
IRFs track your recovery using standardized assessments that score your independence on specific tasks. At admission and again at discharge, clinicians rate your ability to perform self-care activities (eating, grooming, dressing) and mobility activities (walking, transferring from bed to chair, climbing stairs) on a 6-level scale, where higher scores mean greater independence. The change in these scores between admission and discharge is the primary measure of whether rehab is working.
Facilities also report quality measures to Medicare, including whether patients met or exceeded their expected functional scores at discharge. These quality metrics are publicly available and can help you compare facilities when choosing where to go.
How Long Patients Stay
Length of stay varies considerably depending on the condition and severity. For traumatic brain injury, the national average is roughly 14 days, though individual stays can range widely. Patients with less severe injuries average around 10 days, while those with more complex cases may stay 24 days or longer. Stroke patients and those recovering from spinal cord injuries often fall somewhere in a similar range, though severe cases can extend the stay further.
Your care team sets an expected timeline during preadmission screening, but this gets adjusted as your recovery unfolds. You’ll be discharged once you can function safely at your next destination, whether that’s home, an assisted living facility, or a lower level of rehab care.
How IRFs Differ From Skilled Nursing Facilities
The most common point of confusion is the difference between an IRF and a skilled nursing facility (SNF). Both provide rehabilitation after a hospital stay, but the intensity and structure are very different. An IRF requires 3 hours of daily therapy with a full multidisciplinary medical team. A SNF provides therapy too, but at a lower intensity, and the setting is primarily nurse-staffed rather than physician-supervised.
IRFs are appropriate when you need aggressive, coordinated rehabilitation and can physically tolerate that level of activity. SNFs are better suited for patients who need ongoing skilled nursing care alongside lighter rehabilitation, or who aren’t medically able to handle 3 hours of therapy a day. Your hospital team will help determine which setting fits your situation, though you can advocate for a specific level of care if you believe it’s appropriate.
What Medicare Covers
Medicare Part A covers inpatient rehabilitation care. For the first 60 days of a benefit period, you pay nothing beyond the Part A deductible ($1,736 in 2026). If you’re transferred to the IRF directly from a hospital stay, or admitted within 60 days of a hospital discharge, you won’t owe a separate deductible because your benefit period already started during the prior hospitalization.
Days 61 through 90 cost $434 per day in 2026. Beyond 90 days, you draw on lifetime reserve days at $868 per day, with a maximum of 60 reserve days over your entire lifetime. Once those are exhausted, you’re responsible for all costs. Most IRF stays fall well within the first 60 days, so the majority of patients on Medicare pay only the initial deductible or nothing additional if it was already met.
Private insurance and Medicare Advantage plans also commonly cover IRF stays, though the specific cost-sharing rules and prior authorization requirements vary by plan. Checking with your insurer before admission is important, since some plans require preapproval or limit you to in-network facilities.