US · guidance
CMS SOM App. A, Tag A-0008
§482.1 Basis and scope
(a) Statutory basis. (1) Section 1861(e) of the [Social Security] Act provides that—
(i) Hospitals participating in Medicare must meet certain specified requirements; and
(ii) The Secretary may impose additional requirements if they are found necessary in
the interest of the health and safety of the individuals who are furnished services in hospitals.
. . .
(b) Scope. Except as provided in subpart A of part 488 of this chapter, the provisions of this part
serve as the basis of survey activities for the purpose
of determining whether a hospital qualifies for a
provider agreement under Medicare and Medicaid.
Interpretive Guidelines §482.1(a)(1)
Hospital Definition and Regulatory Enforcement Authorities
In order to qualify for a provider agreement as a hospital (other than a psychiatric hospital as defined at
section 1861(f) of the Act) under Medicare and Medicaid, an entity must meet and continue to meet all
of the statutory provisions of §1861(e) of the Act, including the Condition of Participation (CoP)
requirements. See also 42 CFR 488.3(a)(1) and 42 CFR 489.12. This means the entity must:
• Be primarily engaged in providing, by or under the supervision of physicians, to inpatients (A)
diagnostic services and therapeutic services for medical diagnosis, treatment, and care of injured,
disabled, or sick persons, or (B) rehabilitation services for the rehabilitation of injured, disabled, or
sick persons;
• Maintain clinical records on all patients[addressed in 42 CFR 482.24, Medical Records];
• Have medical staff bylaws [42 CFR 482.12, Governing Body, and 42 CFR 482.22, Medical Staff];
• Have a requirement that every patient with respect to whom payment may be made under Title
XVIII must be under the care of a physician except that a patient receiving qualified psychologist
services (as defined in section 1861(ii) of the Act) may be under the care of a clinical psychologist
with respect to such services to the extent permitted under State law [42 CFR 482.12, Governing
Body];
• Provide 24-hour nursing service rendered or supervised by a registered professional nurse, and has a
licensed practical nurse or registered professional nurse on duty at all times…[42 CFR 482.23,
Nursing Services];
• Have in effect a hospital utilization review plan which meets the requirements of section 1861(k) of
the Act [42 CFR 482.30, Utilization Review];
• Have in place a discharge planning process that meets the requirements of section 1861(ee) of the
Act [42 CFR 482.43, Discharge Planning];
• If located in a state in which state or applicable local law provides for the licensing of hospitals, be
licensed under such law or be approved by the agency of the State or locality responsible for
licensing hospitals as meeting the standards established for such licensing [42 CFR 482.11,
Compliance with Federal, State, and Local Laws];
• Have in effect an overall plan and budget that meets the requirements of section 1861(z) of the Act
[42 CFR 482.12, Governing Body]; and
• Meet any other requirements as the Secretary finds necessary in the interest of the health and safety
of individuals who are furnished services in the institution [42 CFR Parts 482 and 489, among
others].
Primarily Engaged
Generally, a hospital is primarily engaged in providing inpatient services under section 1861(e)(1) of the
Act when it is directly providing such services to inpatients. Having the capacity or potential capacity to
provide inpatient care is not the equivalent of actually providing such care. Inpatient hospital services
are defined under section 1861(b) of the Act and in the regulations at 42 CFR Part 409, Subpart B. CMS
guidance describes an inpatient as
“a person who has been admitted to a hospital for bed occupancy for purposes of receiving inpatient
hospital services …. Generally, a patient is considered an inpatient if formally admitted as an inpatient
with the expectation that he or she will require hospital care that is expected to span at least two
midnights and occupy a bed even though it later develops that the patient can be discharged or
transferred to another hospital and not actually use a hospital bed overnight.” (Medicare Benefit Policy
Manual, Chapter 1, §10, (https://www.cms.gov/Regulations-and-
Guidance/Guidance/Manuals/Downloads/bp102c01.pdf)
The “expectation of a two midnight stay” for an inpatient is that the intent of the physician was that the
patient be admitted to the hospital for an inpatient stay as opposed to that of observation status which is
an outpatient service.
Therefore, an average length of stay (ALOS) of two midnights would be one of the benchmarks
considered for certification as a hospital.
• In making a determination of whether or not a facility is primarily engaged in providing
inpatient services and care to inpatients, CMS considers multiple factors and will make a
final determination based on an evaluation of the facility in totality. Such factors include, but
are not limited to, average daily census (ADC), average length of stay (ALOS), the number
of off-campus outpatient locations, the number of provider based emergency departments,
the number of inpatient beds related to the size of the facility and scope of services offered,
volume of outpaient surgical procedures compared to inpatient surgical procedures, staffing
patterns, patterns of ADC by day of the week, etc. Hospitals are not required to have a
specific inpatient to outpatient ratio in order to meet the definition of primarily engaged.
In order for surveyors to determine whether or not a hospital is in compliance with the statutory and
regulatory requirements of Medicare participation, including the definition of a hospital, they must
observe the provision of care. Medicare requirements at 42 CFR 488.26(c)(2) state that “The survey
process uses resident and patient outcomes as the primary means to establish the compliance process of
facilities and agencies. Specifically, surveyors will directly observe the actual provision of care and
services to residents and/or patients, and the effects of that care, to assess whether the care provided
meets the needs of individual residents and/or patients.”
Because §488.26(c)(2) and section 1861(e) of the Act refer to patients (plural) hospitals must have at
least two inpatients at the time of the survey in order for surveyors to conduct the survey. However, just
because a facility has two inpatients at the time of a survey does not necessarily mean that the facility is
primarily engaged in inpatient care and satisfies all of the statutory requirements to be considered a
hospital for Medicare purposes. Having two patients at the time of a survey is merely a starting point in
the overall survey and certification process.
If a hospital does not have at least two inpatients at the time of a survey, a survey will not be conducted
at that time and an initial review of the facility’s admission data will be performed by surveyors while
onsite to determine if the hospital has had an ADC of at least
two and an ALOS of at least two midnights over the last 12 months. Average daily census is calculated
by adding the midnight daily census for each day of the 12 month period and then dividing the total
number by the number of days in the year. For facilities that have multiple campuses operating under
the same CMS Certification Number (CCN), the ADC is not calculated individually at each campus. All
locations make up the entire facility and the ADC will be based on the total inpatient census from all
campuses. This also includes PPS excluded psychiatric and rehabilitation units that are part of the
facility.
In order to be considered primarily engaged in providing inpatient services, prospective hospital
providers and currently participating hospitals should also be able to maintain an ALOS of two
midnights or greater. The ALOS is calculated by dividing the total number of inpatient hospital days
(day of admission to day of discharge, including day of death) by the total number of discharges in the
hospital over 12 months. For facilities that have not been operating for 12 months at the time of the
survey, an ADC calculated using 12 months as the denominator may falsely result in an ADC of less
than two. Therefore, facilities that have been operating less than 12 months at the time of the survey,
should calculate its ADC based on the number of months the facility has been operational but no less
than three months. This does not mean that a facility must be operational for at least three months
before a survey can be completed. It merely means that the ADC cannot be calculated using a
denominator of less than three months.
• If the ADC and ALOS is two or more, the State Survey Agency (SA) or Accrediting
Organization (AO) makes the determination that a second survey will be attempted at a later
date.
• If the facility does not have a minimum ADC of two inpatients and an ALOS of two over the last
12 months (or less than 12 months for facilities that have not been operational for at least 12
months), the facility is most likely not primarily engaged in providing care to inpatients and the
SA or AO may not conduct the survey. The SA or AO must immediately contact the RO to
inform them that a survey could not be completed and the CMS Regional Office will review
additional information provided by the SA or AO to determine whether a second survey should
be attempted.
• When the ADC and ALOS are NOT a minimum of two, the SA or AO do not make the final
determination whether a second survey will be attempted. Instead, the SA or AO must obtain
further information from the facility (other factors described below), review the information and
make a recommendation to the RO regarding whether a second survey should be attempted. The
SA or AO must provide its recommendation in writing to the RO along with the supporting
information used to make the recommendation. The RO must review the recommendation and
information and make a determination on whether a second survey will be conducted and
communicate its decision to the SA or AO within seven business days of receipt of the
recommendation. AO communication to the RO must be via the current established process used
for all other written communication to the RO.
• If during a second survey attempt, the facility does not have two inpatients, the survey will not
be conducted and the SA or AO must cite condition level non-compliance with §482.1. In
addition, the SA or AO must immediately notify the RO of the situation. The RO will then
proceed with either denial of certification (for initial applicants) in the Medicare program or
termination of the provider agreement (for currently participating hospitals). For currently
participating hospitals, the RO will base any termination action on the totality of the situation
including consideration of any access to care issues.
Other factors that the CMS Regional Office should consider in determining whether to (1) conduct a
second survey or (2) recommend denial of an initial applicant or termination of a current provider
agreement, include but are not limited to:
• The number of provider-based off-campus emergency departments (EDs). An unusually large
number of off-campus EDs may suggest that a facility is not primarily engaged in inpatient care
and is instead primarily engaged in providing outpatient emergency services.
• The number of inpatient beds in relation to the size of the facility and services offered.
• The volume of outpatient surgical procedures compared to inpatient surgical procedures.
• If the facility considers itself to be a “surgical” hospital, are procedures mostly outpatient?
• Does the information indicate that surgeries are routinely scheduled early in the week and does it
appear this admission pattern results in all or most patients being discharged prior to the
weekend (for example does the facility routinely operate in a manner that its designated
“inpatient beds” are not in use on weekends)?
• Patterns and trends in the ADC by the day of the week. For example, does the ADC consistently
drop to zero on Saturdays and Sundays? Therefore suggesting that the facility is not consistently
and primarily engaged in providing care to inpatients.
• Staffing patterns. A review of staffing schedules should demonstrate that nurses, pharmacists,
physicians, etc. are scheduled to work to support 24/7 inpatient care versus staffing patterns for
the support of outpatient operations.
• How does the facility advertise itself to the community? Is it advertised as a “specialty” hospital
or “emergency” hospital? Does the name of the facility include terms such as “clinic” or
“center” as opposed to “hospital”?
The CMS RO should consider all of the above factors (and other factors as necessary) to make a
determination as to whether or not a facility is truly operating as a hospital for Medicare purposes. A
determination of non-compliance with § 482.1 will not be based on a single factor, such as failing to
have two inpatients at the time of a survey.
It is important to note that CMS has the final authority to make the determination of whether or not a
facility has met the statutory definition of a hospital after considering the facility’s entire situation, the
recommendations of the SA or AO surveyors as well as the evidence submitted by the SAs and AOs. As
stated previously, a facility that meets State requirements for obtaining State status as a hospital is not
automatically considered a hospital for federal survey and certification purposes without further
evaluation and consideration of all relevant CMS requirements. In addition, approval by the Medicare
administrative contractor of an enrollment application does not convey hospital status for CMS
purposes. Hospital status is only conveyed and approved by the CMS RO after a survey has been
completed and the results clearly demonstrate that the facility has met all the federal requirements,
including the statutory definition.
Survey Procedures §482.1(a)(1)
• Verify there are at least two inpatients currently in the hospital at the time of survey
• If yes, proceed with evaluating the whether the hospital is primarily engaged in providing the
requisite services of a hospital, as well as in the Conditions of Participation.
• If there are currently no inpatients in the hospital, no survey is to be conducted and surveyors
should ask to see the following, in order to make the proper determination of the hospital’s status
and to make the proper recommendations to the RO:
o ADC over the last 12 months (or less for facilities operational for less than 12 months)
Look for patterns and trends in the ADC by the day of the week.
o ALOS over the last 12 months (or less for facilities operational for less than 12 months)
o The number of provider-based off-campus emergency departments.
o The volume of outpatient surgical procedures compared to inpatient surgical procedures
o Staffing schedules by day of week and shift over the last 12 months (or less for facilities
operational for less than 12 months)
o Verify the facility is providing the appropriate types and adequate numbers of staff to
support 24/7 inpatient services (i.e. nursing, pharmacy, physicians, etc.)
o Review the number of inpatient beds in relation to the size of the facility and services
offered.
o Determine if the number of inpatient beds could support emergency or unplanned
admissions from the volumes of other services offered by the facility, such as ED patients
or outpatient surgery patients?
• If the initial review of the above information indicates that the facility is most likely not
providing care to inpatients, then a second survey will not be conducted. However, if the review
of the information indicates the facility has had an ADC and ALOS of two over the last 12
months (or less for facilities operational for less than 12 months) and there are no other concerns
regarding facility’s eligibility to be surveyed as a hospital, then a second survey will be
scheduled for a future unannounced date after consulting with the RO.
• Whenever the SA or AO is unable to complete a survey because the hospital did not have a
sufficient number of inpatients that is a representative sample of the different types of services
and patient populations that are treated at that hospital, it must immediately report this
information to the RO.
• Determine through interview, observation, and record review that the hospital meets the statutory
requirements as defined by 1861(e), including the CoPs Verify the facility does the following:
• Maintains clinical records on all patients;
• Has medical staff bylaws;
• Has a requirement that every patient with respect to whom payment may be made under this
title must be under the care of a physician except that a patient receiving qualified
psychologist services (as defined in section 1861(ii) of the Act) may be under the care of a
clinical psychologist with respect to such services to the extent permitted under State law;
• Provides 24-hour nursing service rendered or supervised by a registered professional nurse,
and has a licensed practical nurse or registered professional nurse on duty at all times…;
• Has in effect a hospital utilization review plan which meets the requirements of section
1861(k) of the Act;
• Has in place a discharge planning process that meets the requirements of section 1861(ee) of
the Act;
• If located in a state in which state or applicable local law provides for the licensing of
hospitals, be licensed under such law or be approved by the agency of the State or locality
responsible for licensing hospitals, as meeting the standards established for such licensing;
• Has in effect an overall plan and budget that meets the requirements of section 1861(z) of the
Act.
History
Rev.172, Issued: 11-17-17, Effective: 11-17-17, Implementation: 11-17-17
Provenance
- Source
- cms.gov
- Retrieved
- 2026-07-22
- Edition
- som-2026-07-22
- Content hash
f9c46ff8e20907cfb260f6e6196fcaf8f5e6cc6ffc51ddefcc53c2eb78b3f618
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