Medicare General Information, Eligibility and Entitlement Manual (Pub. 100-01), Ch. 1 § 10.1
Hospital Insurance (Part A) for Inpatient Hospital, Hospice, Home
10.1 - Hospital Insurance (Part A) for Inpatient Hospital, Hospice, Home
Health and Skilled Nursing Facility (SNF) Services - A Brief Description
(Rev. 94, Issued: 10-16-15, Effective: 11-16-15, Implementation: 11-16-15)
Hospital insurance is designed to help patients defray the expenses incurred by hospitalization
and related care. In addition to inpatient hospital benefits, hospital insurance covers posthospital
extended care in SNFs and posthospital care furnished by a home health agency in the patient's
home. Blood clotting factors, for hemophilia patients competent to use such factors to control
bleeding without medical or other supervision, and items related to the administration of such
factors, are also a Part A benefit for beneficiaries in a covered Part A stay. The purpose of these
additional benefits is to provide continued treatment after hospitalization and to encourage the
appropriate use of more economical alternatives to inpatient hospital care. Program payments
for services rendered to beneficiaries by providers (i.e., hospitals, SNFs, and home health
agencies) are generally made to the provider. In each benefit period, payment may be made for
up to 90 inpatient hospital days, and 100 days of posthospital extended care services.
Hospices also provide Part A hospital insurance services such as short-term inpatient care. In
order to be eligible to elect hospice care under Medicare, an individual must be entitled to Part A
of Medicare and be certified as being terminally ill. An individual is considered to be terminally
ill if the individual has a medical prognosis that his or her life expectancy is 6 months or less if
the illness runs its normal course.
The Part A benefit categories of inpatient hospital services and SNF services are each subject to
separate and mutually exclusive day limits, so that the use of benefit days under one of these
benefits does not affect the number of benefit days that remain available under the other.
Accordingly, the 90 days of inpatient hospital benefits (plus 60 nonrenewable lifetime reserve
days -- see Pub. 100-02, Medicare Benefit Policy Manual, chapter 5) that are available to a
beneficiary in a hospital do not count against the 100 days of posthospital extended care benefits
that are available in a SNF, and vice-versa.