US · guidance
CMS SOM App. A, Tag A-0535
[§482.26 Condition of Participation: Radiologic Services
…. If therapeutic services are also provided, they, as well as the diagnostic services, must
meet professionally approved standards for safety and personnel qualifications.]
§482.26(b) Standard: Safety for Patients and Personnel
The radiologic services, particularly ionizing radiology procedures, must be free from
hazards for patients and personnel.
Interpretive Guidelines §482.26(b)
The hospital must adopt and implement radiologic services policies and procedures that provide
safety for affected patients and hospital personnel and which are consistent with accepted
professional standards for radiologic services.
Ionizing Radiology Procedures
Radiologic services modalities that use ionizing radiation have increased the ability to detect
disease or injury early enough for a medical problem to be managed, treated, or cured. When
applied and performed appropriately, these radiologic studies or procedures can maintain or
improve health and save lives.
X-ray energy used in radiologic services also has a potential to harm living tissue. The most
significant risks are:
• Cataracts and skin damage, but only at very high levels of radiation exposure; and
• An increase in the possibility that a person exposed to x-ray energy will develop cancer later
in life. The risk of developing cancer from radiologic services radiation exposure is
generally very small, and it depends on at least three factors—the amount of the radiation
dose, the age of the person exposed, and the sex of the person exposed:
• The lifetime risk of cancer increases the larger the dose and the more x-ray studies or
procedures a patient undergoes;
• The lifetime risk of cancer is larger for a patient who received x-rays at a younger age
than for one who receives them at an older age; and.
• Women are at a somewhat higher lifetime risk than men for developing radiation-
associated cancer after receiving the same exposures at the same ages.
MRI:
MRIs are useful when a soft tissue injury or disease process is suspected and are generally
considered at low risk of causing harm to patients or staff. However, they also are not entirely
risk-free. Potential risks include projectile risk of magnetic objects being sucked into the main
magnet, thermal injury and burns, adverse effects on devices and leads implanted in patients, and
hearing damage.
Provision of services in accordance with professionally approved standards for safety
All radiological services provided by the hospital, including both diagnostic and, if offered,
therapeutic services, must be provided in accordance with acceptable standards of practice,
including standards for safety.
Professionally approved standards include maintaining compliance with applicable Federal and
State laws and regulations governing radiological services, including, but not limited to, facility
licensure and/or certification requirements.
Professionally approved standards also include the recommendations or guidelines promulgated
by expert governmental agencies, such as the U.S. Food and Drug Administration, as well as
those issued by nationally recognized professional organizations, such as the American Medical
Association, American College of Radiology, Radiological Society of North America, The
Alliance for Radiation Safety in Pediatric Imaging, American Society of Radiologic
Technologists, the American College of Cardiology, the American College of Neurology, the
American College of Physicians, etc.
Generally, there are different standards for different imaging modalities used to provide
radiologic services; there may also be different standards for diagnostic versus therapeutic uses,
as well as for pediatric versus adult patients, etc. For example, the American College of
Radiology has separate diagnostic radiology guidance documents for general radiology, CT,
MRI, and ultrasound, among others. The hospital must be able to document the source standards
that form the basis for its policies and procedures for each of its radiologic services modalities
and/or settings. For example, if one organization’s standards are used for mammography
services, another’s for CT services, another’s for MRI, and another’s for pediatric X-rays, this
must be clearly indicated.
In order to ensure safety and freedom from hazards, the hospital’s radiologic services policies
and procedures must include, but are not limited to, provisions addressing the following:
• For ionizing radiation services, application of the fundamental principle of As Low as
Reasonably Achievable or ALARA, which is defined by the U.S. Environmental Protection
Agency (EPA) as “A principle of radiation protection philosophy that requires that exposures
to ionizing radiation be kept as low as reasonably achievable, economic and social factors
being taken into account. The protection from radiation exposure is ALARA when the
expenditure of further resources would be unwarranted by the reduction in exposure that
would be achieved.” (Federal Guidance Report No. 14, Radiation Protection Guidance for
Diagnostic and Interventional X-ray Procedures, p. 100, November, 2014) Although CMS
does not interpret or enforce EPA guidance, the ALARA principle is considered an accepted
standard of practice for ionizing radiation services to which hospitals must adhere.
• Written protocols developed or approved by the radiologist responsible for the radiologic
services, in conjunction with other qualified radiologic services personnel (e.g., a medical
physicist, radiologic technologists, patient safety officers, etc.) designed to ensure that
diagnostic studies and therapeutic procedures are routinely performed in a safe manner,
utilizing parameters and specifications that are appropriate to the ordered study/procedure.
The hospital must ensure that protocols for the various types of ionizing radiation diagnostic
or therapeutic imaging modalities are designed to minimize the amount of radiation while
maximizing the yield and producing diagnostically acceptable image quality. Existing
protocols must be reviewed periodically and updated as needed. The rationale and details for
changes to technical parameters must be documented.
For Information Only – Not Required/Not to be Cited
Hospitals are encouraged to follow the recommendation in the EPA’s Guidance
Report No. 14 concerning patient radiation dosage. The report says “As the ICRP
[International Commission on Radiological Protection] has stated, ‘Provided that the
medical exposures of patients have been properly justified and that the associated doses are
commensurate with the medical purpose, it is not appropriate to apply dose limits or dose
constraints to the medical exposure of patients, because such limits or constraints would
often do more harm than good’ (ICRP 2007b). While dose limits do not apply to medical
exposures, radiation doses to patients should always be optimized. All responsible parties
should always strive to minimize patient irradiation to the dose that is necessary to perform
the procedure with adequate image quality. The recommendation against establishing
absolute dose limits should not discourage a facility from implementing diagnostic
reference levels for imaging and interventional procedures. Exceeding these levels
should prompt a review of practice at the facility as a quality assurance measure.
Dose notification and alert values for CT, notification levels for use during
interventional procedures, and trigger levels for follow-up after interventional
procedures are also appropriate QA measures [emphasis added]...(EPA Guidance
Report No. 14, p.6)
• Policies and protocols to identify patients at high risk for adverse events for whom the
radiologic study or procedure might be contraindicated, e.g., pregnant women, individuals
with known allergies to contrast agents, individuals with implanted devices, etc. Policies
would address the steps to be taken, and by which personnel, if an order is written for a
radiologic study or procedure for an individual identified in the radiologic services policies
as potentially at high risk (e.g., notify the ordering physician, cancel the procedure
personally, etc.).
• Specific requirements related to procedures to mitigate radiation hazards are discussed in the
guidance for §482.26(b)(1).
• Procedures to address risks associated with modalities that do not use ionizing radiation. For
example, with respect to MRI:
• Measures to prevent magnetic materials from being closer than is safe to the MRI suite,
per nationally recognized guidelines;
• If equipment and supplies, such as fire extinguishers and oxygen tanks, are located in
the MRI area, they are MR-safe, i.e., they are non-ferromagnetic;
• Provision of adequate and effective hearing protection to patients, staff and others who
might be in the MRI suite while the scans are taking place; and
• Measures to reduce the risk of thermal injuries/burns during MRI. This would include,
but is not limited to, screening patients to identify those who may have metallic tattoos or
metal in them, proper patient positioning, ensuring implants are MR Conditional,
checking for electrically conductive materials that might be in close proximity to the
patient and taking the appropriate precautions, and instructing the patient to immediately
report any burning sensations experienced during the scan.
• Training required by personnel permitted to enter areas where radiologic services are
provided.
• Training and, as applicable, qualifications, required for personnel who perform diagnostic
imaging studies or therapeutic procedures utilizing radiologic services equipment. This
includes proper operation of equipment per manufacturer’s instructions and hospital policy.
• Areas where radiologic services are provided must be equipped with the necessary equipment
or materials to immediately respond to potential adverse events. This could include, but is
not limited to, things like a crash cart, emergency stop mechanisms, cleaning and
decontamination agents if applicable, etc.
For Information Only – Not Required/Not to be Cited
Hospitals are encouraged to also address the following in their Radiologic Services:
• Encouraging physicians and other practitioners with privileges to order radiologic studies
or procedures that utilize ionizing radiation to consider both the benefits and risks of the
procedures.
• Recording and tracking the dosing patients receive. There are several nationally
recognized quality assurance programs designed to assist health care providers in
developing and maintaining this data, including, but not limited to:
• The Alliance for Safety in Pediatric Imaging (www.Imagegently.org)
• The Conference of Radiation Control Program Directors
• The American College of Radiology data registry (http://nrdr.acr.org)
• The Nationwide Evaluation of X-ray Trends (NEXT program)
Further, although the EPA’s Guidance Report No. 14 was developed by an Interagency
Working Group on Medical Radiation specifically to provide guidance to Federal facilities that
use diagnostic and interventional X-ray equipment, it should also be useful to non-Federal
medical facilities and hospitals are encouraged to review it. The Guidance Report addresses
the following topics:
• Radiation Safety Standards and General Concerns
• Structural Shielding and Door Interlock Switches
• Requesting and Performing Studies Involving X-rays
• Technical Quality Assurance
• General Guidelines for Clinical Imaging, organized into separate sections for Medical and
Dental, and further broken down by modality
• Imaging Informatics
• Recommendations for Facility Action
Medical Physicists
According to the American Association of Physicists in Medicine, the practice of Medical
Physics means the use of principles and accepted protocols of physics to ensure the correct
quality, quantity, and placement of radiation during the performance of a radiological procedure.
Hospitals are not required under the regulations to have a medical physicist on staff or under
contract. However, since radiologic services are required to be free from hazards to patients and
hospital personnel, hospitals must ensure that qualified personnel, whether or not they are
medical physicists, develop and carry out protocols and test, calibrate, and maintain radiologic
services equipment and that there is a reliable means to validate the results.
For Information Only - Not Required/Not to be Cited
Definition of a Medical Physicist
An example of a definition of and qualifications for a medical physicist is provided by the
American Association of Physicists in Medicine:
“For the purpose of providing clinical professional services, a Qualified Medical Physicist
(QMP) is an individual who is competent to independently provide clinical professional
services in one or more of the subfields1 of medical physics. The subfields of medical physics
are:
• Therapeutic Medical Physics
• Diagnostic Medical Physics
• Nuclear Medicine Physics
• Medical Health Physics
…. A Qualified Medical Physicist meets each of the following credentials:
• Has earned a master’s and/or doctoral degree in physics, medical physics, biophysics,
radiological physics, medical health physics, or equivalent disciplines from an accredited
college or university; and
• Has been granted certification in the specific subfield(s) of medical physics with its
associate medical health physics aspects by an appropriate national certifying body and
abides by the certifying body’s requirements for continuing education.”
http://www.aapm.org/org/default.asp
For Information Only - Not Required/Not to be Cited
The responsibilities of the medical physicist in a hospital may include:
• protection of the patient and others from potentially harmful or excessive radiation;
• establishment, with the approval of the Director of Radiologic Services, of adequate
protocols to ensure accurate patient dosimetry;
• measurement and characterization of radiation;
• determination of delivered dose;
• promotion of procedures necessary to ensure image quality;
• development and direction of quality assurance programs; and assistance to other
healthcare professionals in optimizing the balance between the beneficial and deleterious
effects of radiation.
Hospitals are also encouraged to involve a medical physicist in the calibration of the radiologic
services equipment and monitoring of radiation dosage exposures to staff.
Consistent with the requirements under the Quality Assessment and Performance Improvement
(QAPI) CoP at 42 CFR 482.21, the hospital must monitor the quality and safety of radiologic
services.
Examples of indicators of potential quality and safety problems could include, but are not limited
to:
• Improper patient preparation, such as inadequate intravenous access or lack of pre-medication, such that procedures must be cancelled or reordered;
• Repeats of the same studies in the hospital for the same patient within a short time span,
which may be an indicator of poor image quality; or
• Diagnostic imaging studies or therapeutic procedures performed in a manner inconsistent
with the applicable hospital written protocol.
Under the QAPI CoP, hospitals are required to undertake improvement activities in areas that
represent high risk, high volume, or problem-prone areas. Problems identified in radiologic
services may meet these criteria. In addition, adverse events related to radiologic services must
be analyzed for their causes, and preventive actions must then be undertaken. Deficiencies
identified related to tracking, analyzing, and addressing adverse event and quality indicator data
and performance improvement activities must be cited under the applicable QAPI standards.
Survey Procedures §482.26(b)
• Verify that there are written hospital policies and procedures and protocols for specific
radiologic services modalities that are based on identified professionally approved standards,
and which address the ALARA principle as well as the other safety and risk-reduction
measures discussed in the guidance.
• Ask for evidence that safety protocols are reviewed periodically and, if applicable,
updated.
• Determine if the radiologic services staff are familiar with the policies and procedures related
to safety in general and specific clinical protocols.
• Observe whether the policies and procedures are followed when radiologic services are
delivered to patients. Ask for the protocol(s) for one or more studies/procedure(s) you
observed and check if they were followed.
• Verify that radiologic services staff are trained at appropriate intervals to ensure that they are
operating the equipment according to manufacturer’s instructions and hospital policy
• Verify that radiologic services staff know how to respond to adverse events.
• Confirm that areas where radiologic services are provided are equipped with the equipment
or materials to immediately respond to an adverse event.
• Ask the radiologist who supervises ionizing radiologic services how the hospital monitors the
quality and safety of radiologic services.
• Verify that adverse events are analyzed for their causes and that preventive actions are taken
(deficiencies to be cited both here and under the applicable QAPI citation).
History
Rev. 141, Issued: 07-10-15, Effective: 07-10-15, Implementation: 07-10-15
Provenance
- Source
- cms.gov
- Retrieved
- 2026-07-22
- Edition
- som-2026-07-22
- Content hash
a5fb2a49dc11d1b444d01a79cdf95a3e57ca3776e2547484eba2dd8b17f3ac23
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