A person typically qualifies for a nursing home when they need round-the-clock skilled nursing care or supervision that can’t safely be provided at home or in an assisted living facility. Qualification isn’t a single checklist. It involves three separate determinations: whether the person’s medical and functional needs justify the level of care, whether they meet financial requirements for coverage, and whether a physician certifies the placement as medically necessary.
Functional Needs: Activities of Daily Living
The most common measure of whether someone needs nursing home care is how many basic activities of daily living (ADLs) they can no longer perform on their own. These are the fundamental tasks of self-care: bathing, dressing, eating, using the toilet, moving from a bed to a chair, and maintaining continence. A second category, called instrumental activities of daily living, covers more complex tasks like managing medications, handling finances, cooking, using a phone, shopping, and arranging transportation.
Most states require that a person need substantial help with at least two or three basic ADLs before they qualify for nursing home placement. The specific number varies by state, but the principle is the same everywhere: the person’s daily functioning has declined to the point where they need hands-on assistance throughout the day and night, not just a few hours of help.
States use formal assessment tools to measure these needs. Every nursing facility in the country is required to use the Minimum Data Set (MDS), a standardized questionnaire that evaluates a resident’s health conditions, physical abilities, and cognitive function. Some states also use tools like the interRAI Home Care Assessment System or their own state-developed instruments to evaluate applicants before admission. These assessments look at the full picture: not just what you can’t do, but what kind of help you need and how often you need it.
Medical Conditions That Require Nursing-Level Care
There’s no single diagnosis that automatically qualifies someone for a nursing home. Instead, the question is whether the person’s medical situation demands the kind of skilled care that only licensed nurses can provide on a daily basis. This includes things like wound care for serious pressure injuries, intravenous medications or fluids, physical or occupational therapy after a stroke or hip fracture, ventilator management, or monitoring of unstable chronic conditions.
Dementia and other forms of cognitive impairment are among the most common reasons for nursing home placement, though the diagnosis alone isn’t enough. What matters is whether the cognitive decline has created safety risks: wandering, leaving the stove on, inability to manage medications, falling repeatedly, or becoming vulnerable to financial exploitation. Risk factors that often signal the need for this level of care include a history of type 2 diabetes, stroke, depression, trouble managing money or medications, and being older than 80.
People with advanced Parkinson’s disease, severe heart failure, late-stage COPD, or conditions requiring complex daily medical management also frequently qualify. The common thread is that the person’s needs go beyond what a home caregiver or assisted living staff can safely handle.
The Physician’s Certification
No one enters a nursing home without a physician (or in some cases, a nurse practitioner or physician assistant) certifying that the placement is medically necessary. Federal regulations require this certification to state that the person needs daily skilled nursing care or skilled rehabilitation services that can only practically be provided in a nursing facility on an inpatient basis. There’s no required form for this. Doctors can document the certification in clinical notes, on a facility’s own paperwork, or on a separate statement, as long as the reasoning is clear and the document is signed.
For ongoing stays, recertifications are required periodically. These must explain why the person still needs nursing-level care, estimate how much longer they’ll need to stay, and outline any plans for eventual discharge or home care.
Screening for Mental Health and Intellectual Disabilities
Federal law requires an additional screening step for anyone entering a Medicaid-certified nursing facility. The Preadmission Screening and Resident Review (PASRR) process, established by Congress in 1987, ensures that people with serious mental illness or intellectual disabilities aren’t placed in nursing homes when a different setting would serve them better.
This happens in two stages. A Level I screen is a brief evaluation given to every nursing home applicant to flag whether they may have a mental illness or intellectual disability. If that screen comes back positive, a more detailed Level II assessment follows. This deeper evaluation confirms the diagnosis and produces recommendations for services the person needs, which then become part of their care plan. The goal isn’t to keep people out of nursing homes, but to make sure anyone with these conditions gets appropriate specialized services regardless of where they live.
How Medicare Covers Nursing Home Stays
Medicare covers skilled nursing facility care only under specific, narrow conditions, and only for a limited time. It is not designed for long-term residence. To qualify for Medicare coverage, you must meet all of these requirements: you have Medicare Part A with benefit days remaining, you had a qualifying inpatient hospital stay of at least 3 consecutive days (not counting the discharge day), you enter the nursing facility within 30 days of leaving the hospital, and your doctor has determined you need daily skilled care related to your hospital stay.
The 3-day hospital rule trips up many families. Time spent in the emergency room or under “observation status” does not count toward those 3 inpatient days, even if you stayed in the hospital overnight. This distinction matters enormously because if your hospital stay doesn’t meet the threshold, Medicare won’t cover any of the nursing facility care that follows. One exception exists: if your doctor participates in an Accountable Care Organization or a Medicare program approved for a 3-day rule waiver, the requirement may be reduced.
When coverage does apply, Medicare pays the full cost for the first 20 days. From day 21 through day 100, you’re responsible for a daily copay. After day 100, Medicare coverage ends entirely.
Medicaid Financial Eligibility
Medicaid is the primary payer for long-term nursing home stays in the United States, but it has strict financial requirements. In most states, an individual applying for nursing home Medicaid can have no more than $2,000 in countable assets (bank accounts, investments, cash value of life insurance). For couples, that limit is typically $3,000. A few states set higher thresholds: California allows up to $130,000 in individual assets, New York allows $32,396, and Michigan allows $9,950.
Income limits vary more widely. The majority of states cap monthly income at $2,982 for 2026 projections. States like Illinois, Minnesota, Nebraska, and North Carolina set their limits lower, around $1,304 per month. If your income exceeds the limit in certain states, you may still qualify by setting up a Qualified Income Trust (sometimes called a Miller Trust), which holds the excess income and directs it toward your care costs. Not every state requires this: California, New York, Illinois, Minnesota, Nebraska, and North Carolina are among those that don’t use the Miller Trust system.
Your home is generally excluded from the asset count as long as your equity falls below your state’s limit. That limit ranges from $752,000 to $1,130,000 depending on where you live. California has no home equity limit at all. However, Medicaid may eventually seek recovery from your estate after your death, so the home exemption during your lifetime doesn’t mean the asset is permanently protected.
How the Pieces Fit Together
In practice, qualifying for a nursing home means passing through several gates at once. A doctor must certify medical necessity. The state’s functional assessment must confirm that your care needs are high enough to justify placement. The PASRR screening must be completed. And if you’re relying on Medicaid or Medicare to pay, you must meet their separate financial or hospitalization requirements.
Many families first encounter this process during a hospital discharge, when a case manager or social worker recommends nursing facility placement and helps coordinate the assessments. If you’re planning ahead rather than responding to a crisis, your starting point is a conversation with the person’s primary care provider, who can evaluate whether the level of need has reached the nursing home threshold or whether home-based services or assisted living might still be viable alternatives.