Medicare Part A: What Hospital Coverage Actually Looks Like

Medicare Part A is the hospital side of Original Medicare. It covers inpatient hospital care, skilled nursing facility care, hospice, and some home health services. Most people qualify for it at no premium, which is why it often gets less attention than it deserves. But when you actually need to use it, the cost structure can be surprising if you have not looked at it ahead of time.

Inpatient Hospital Coverage

When you are formally admitted to a hospital as an inpatient, Part A kicks in. The coverage is organized around "benefit periods" rather than a single calendar-year deductible, which is different from most insurance people are used to.

A benefit period begins the day you are admitted to a hospital or skilled nursing facility and ends when you have been out of both for 60 consecutive days. Once 60 days pass, a new benefit period begins if you are admitted again -- and a new deductible applies. There is no limit to the number of benefit periods you can have in a year.

Days 1-60: You pay the Part A deductible (approximately $1,632 in 2026) once per benefit period. After that, Medicare pays 100% of covered hospital costs for the first 60 days.

Days 61-90: You pay coinsurance of approximately $408 per day.

Days 91+: You can use "lifetime reserve days." Everyone gets 60 lifetime reserve days total over their entire time on Medicare. During these days, you pay approximately $816 per day. Once lifetime reserve days are used up, Medicare pays nothing for those additional days.

Hospital coverage includes a semi-private room, meals, nursing services, operating and recovery rooms, intensive care, drugs and supplies administered during the stay, and diagnostic tests done during the admission.

The Observation Status Problem

One of the most confusing and potentially expensive issues in Medicare Part A involves "observation status." Not every night you spend in a hospital counts as an inpatient admission. Sometimes you are placed under "observation" -- a status that means you are technically an outpatient even though you are physically in a hospital bed.

Observation status is billed under Part B rather than Part A. This matters for two reasons. First, your drug coverage is different -- in observation status, many hospitals require you to use your own medications brought from home or pay out-of-pocket for hospital drugs that Part A would have covered. Second, and more significantly, a prior inpatient stay of at least three days is required for Medicare to cover skilled nursing facility care. Observation days do not count toward that three-day requirement.

If you are in the hospital and unclear about your status, you have the right to ask. As of 2016, hospitals are required to notify patients when they are under observation for more than 24 hours.

Skilled Nursing Facility Coverage

After a qualifying hospital inpatient stay of at least three days, Part A covers care in a skilled nursing facility. This is not the same as a regular nursing home or long-term care facility -- it is for short-term rehabilitative care requiring skilled nursing or therapy services after an illness, injury, or hospital stay.

Days 1-20: Part A pays 100% of covered costs.

Days 21-100: You pay approximately $204 per day in coinsurance. Medicare pays the rest.

Days 101 and beyond: Medicare pays nothing. You pay all costs.

Home Health Care

If you are homebound and your doctor certifies that you need skilled care (nursing, physical therapy, speech therapy), Part A or Part B covers home health visits. There is no deductible or coinsurance for home health care, but coverage is meant for short-term, goal-oriented care rather than indefinite ongoing assistance.

Hospice Care

Part A covers hospice care for people who are terminally ill with a life expectancy of six months or less, as certified by two doctors. Hospice focuses on comfort and quality of life rather than curative treatment. Medicare covers most services with minimal cost-sharing.