
Introduction: What Part A Is and Why It Matters
Medicare Part A is the portion of Medicare that covers facility based care for many people who are eligible for Medicare. Knowing what Medicare Part A covers helps people prepare for hospital stays, post hospital care, and the costs they may face. Clarity about Part A coverage supports better planning in the event of a medical need.
Many beneficiaries receive Part A without a monthly premium if they or their spouse had 10 years (40 quarters) of Medicare covered employment. Others may pay a premium. Coverage and eligibility rules and cost sharing can shape decisions about additional coverage and budgeting for health related expenses.
Short Overview of Medicare Part A
Medicare Part A primarily covers inpatient hospital services and related facility based treatments. It is designed to pay for medically necessary care delivered in hospitals, skilled nursing facilities, hospice settings, and certain home health services following an eligible event.
Part A works with Medicare Part B and, for many people, with Medicare Advantage or supplemental policies to fill gaps. Understanding Part A’s scope and limits prevents surprises when bills arrive.
What Part A Covers
Medicare Part A covers a defined set of services tied to inpatient or facility based care. These services aim to address acute medical needs or provide short term skilled care after a hospital stay.
Inpatient Hospital Care
Part A pays for inpatient hospital stays when admission is medically necessary and ordered by a physician. Coverage includes semiprivate rooms, meals, general nursing, medications provided in the hospital, and other hospital services and supplies.
Not every hospital expense is covered entirely. Cost sharing rules apply based on benefit periods and the length of the patient’s stay in the hospital. Medicare certification must be met by the hospital in order for coverage to apply.
Skilled Nursing Facility Care
Skilled Nursing Facility (SNF) care is covered under Part A when specific conditions make this care eligible. Coverage typically applies to short term stays that follow an eligible inpatient hospital stay, and only when skilled nursing or rehabilitation services are medically necessary.
Therapies such as physical, occupational, and speech pathology are commonly provided in SNFs. The level and duration of coverage depend on medical necessity and adherence to program rules.
Hospice Care
Part A covers hospice care for Medicare beneficiaries who have a terminal illness and a doctor certifies a life expectancy of six months or less if the illness runs its normal course. Hospice focuses on comfort and palliative care rather than curative treatment.
Services can include nurse and social worker visits, counseling, pain management medications related to the terminal condition, durable medical equipment for symptom control, and support for the beneficiary’s family.
Home Health Services
Home health services are covered when a physician certifies the patient is homebound and needs skilled care on an intermittent basis. Covered services include part time skilled nursing, therapy services, and medical social services.
Part A can cover durable medical equipment delivered to the home when provided by a home health agency. Routine custodial care, such as help with bathing or dressing, is generally not covered.
Other Inpatient Services and Covered Items
Part A also covers certain specific inpatient services, such as short stay inpatient psychiatric care and inpatient care in critical access hospitals. Blood transfusions and other hospital ordered items and services are covered when provided during a covered inpatient stay.
Coverage is determined by Medicare rules, and not all facility services are covered under every circumstance.
Hospital Stays and Benefit Periods
Medicare measures hospital stay coverage using benefit periods. A benefit period begins the day a beneficiary is admitted as an inpatient and ends when the patient has not received inpatient hospital care for 60 consecutive days.
If a new hospital admission occurs more than 60 days after discharge, a new benefit period begins, and a new deductible may apply.
The length of the hospital stay matters. Part A covers the full cost for the initial days of an inpatient stay after the applicable deductible. For longer stays, daily coinsurance amounts apply, and coverage changes after certain day thresholds.
Skilled Nursing Facility Coverage and Eligibility Conditions
To qualify for Part A coverage in a skilled nursing facility, a beneficiary generally needs to be admitted to the hospital for at least three consecutive nights as an inpatient for a Medicare covered admission. Admission to the skilled nursing facility must occur within a specific time frame following a hospital discharge. The three day hospital stay is not required for someone on a Medicare Advantage plan.
Coverage applies only when the skilled nursing facility care is for conditions that necessitate skilled nursing or rehabilitative services. Custodial care for daily activities is not covered if that is the only reason for the skilled nursing facility stay.
Duration limits exist. Part A covers up to 100 days in a skilled nursing facility per benefit period under certain conditions: full coverage for the first 20 days and coinsurance for days 21–100. After 100 days, the beneficiary is typically responsible for 100% of costs.
Hospice and Home Health Basics and Examples of Covered Services
Hospice care focuses on symptom control, pain relief, and emotional and spiritual support for patients and families facing terminal illness. Typical covered hospice services include nursing care, medications related to the terminal condition, short term inpatient care for symptom management, and bereavement counseling.
Here is an example: a beneficiary with advanced cancer who chooses hospice may receive regular nursing visits, medications to control pain, access to a hospice aide for personal care, and counseling for family caregivers.
Home health care covers intermittent skilled nursing and therapy services for homebound beneficiaries. Examples include a nurse visiting to change wound dressings, a physical therapist providing rehabilitation exercises, or a speech therapist assisting with swallowing difficulties.
Home health services often supplement home based care, helping with recovery or maintaining function after hospitalization. Devices and equipment necessary for treatment, such as certain walkers or oxygen supplies, may be covered when prescribed and provided through a Medicare certified home health agency.
Costs and Out of Pocket Responsibilities
Part A has cost sharing components that beneficiaries should understand. These components are deductibles, coinsurance, and limited reserve days that can affect out of pocket expenses during extended inpatient care.
Part A Deductible and When It Applies
The Part A deductible applies to each benefit period in which a beneficiary is admitted to the hospital as an inpatient. The deductible covers the initial set of inpatient days before Medicare begins paying. If a beneficiary has multiple hospitalizations within the same benefit period, the deductible typically applies only once.
The deductible amount is set annually by Medicare and can change each year.
Coinsurance and Coverage Limits for Extended Stays
After the deductible, Part A covers most costs for a set number of days. For days beyond the initial fully covered days, beneficiaries pay copay amounts per day.
For skilled nursing facility stays, a copay applies beginning on the 21st day of care and continues through the 100th day of care. After the 100th day, Part A does not cover SNF care.
What Lifetime Reserve Days Are and How They Affect Costs
The Medicare offering of lifetime reserve days are a one time pool of additional hospital days available to help cover costs for very long inpatient stays. These days are limited in number and are used only after a beneficiary exhausts the standard coverage days in a benefit period.
Using these lifetime reserve days necessitates a coinsurance payment for each reserve day used. Once the reserve days are exhausted, the beneficiary is responsible for all costs for continued inpatient hospital care during future benefit periods.
What Part A Does Not Cover
Part A does not cover routine outpatient care, most prescription drugs taken at home, long term custodial care when that is the only need, private duty nursing, or personal care services when provided alone.
Dental care, routine vision, and hearing services, and elective procedures performed outside a hospital inpatient setting are typically excluded. Additionally, if services are not medically necessary under Medicare standards, Part A will not pay.
Common Misunderstandings About Part A and Clarifications
Some people assume Part A covers all hospital related costs. It covers many inpatient services but has limits, cost sharing, and eligibility requirements that can leave gaps.
Another misconception is that a short observation stay counts as an inpatient admission for skilled nursing facility eligibility. Observation status usually does not meet the three day inpatient requirement for SNF coverage. That distinction affects post hospital benefits.
People sometimes think home health care is available without a physician’s order. Home health coverage generally requires a physician’s certification that the patient is homebound and needs skilled services.
How To Verify Your Part A Coverage and Where To Find Official Information
The Social Security Administration and the Centers for Medicare & Medicaid Services (CMS) provide authoritative information about Medicare Part A. Beneficiaries can check enrollment status, effective dates, and premium details through their online Social Security account or by contacting Social Security directly.
Medicare’s official website lists covered services, updates, cost figures, and eligibility rules. Medicare publications and customer service representatives can clarify specific coverage details. Medicare Summary Notices and Medicare Administrative Contractors also provide details about billed services and coverage decisions.
Keep records of physician orders, necessary documentation, and hospital admissions. When confirming whether a service has met Medicare’s conditions, bills and notices are useful.
Disclaimer
This content is intended for educational purposes to help people understand what Medicare Part A covers. It does not offer medical, financial, or legal advice. Costs, rules, and coverage details change; official Medicare resources should be consulted for current figures and personal eligibility.
Premier Insurance Solutions provides independent educational material and encourages individuals to review official Medicare publications or contact the relevant government agencies to verify their personal coverage details.

