Medicare Benefit Policy Manual (Pub. 100-02), Ch. 6 § 20.4.3
Coverage of Outpatient Diagnostic Services Furnished on or
20.4.3 - Coverage of Outpatient Diagnostic Services Furnished on or
Before December 31, 2009
(Rev. 128, Issued: 05-28-10, Effective: 07-01-10, Implementation: 07-06-10)
Covered diagnostic services to outpatients include the services of nurses, psychologists,
technicians, drugs and biologicals necessary for diagnostic study, and the use of supplies
and equipment. When a hospital sends hospital personnel and hospital equipment to a
patient’s home to furnish a diagnostic service, Medicare covers the service as if the
patient had received the service in the hospital outpatient department.
For services furnished before August 1, 2000, hospital personnel may provide diagnostic
services outside the hospital premises without the direct personal supervision of a
physician. For example, if a hospital laboratory technician is sent by the hospital to a
patient’s home to obtain a blood sample for testing in the hospital’s laboratory, the
technician’s services are a covered hospital service even though a physician was not with
the technician.
For services furnished on or after August 1, 2000, and before January 1, 2010, Medicare
Part B makes payment for hospital or CAH diagnostic services furnished to outpatients,
including drugs and biologicals required in the performance of the services (even if those
drugs or biologicals are self-administered), if those services meet the following
conditions:
1. They are furnished by the hospital or under arrangements made by the hospital or
CAH with another entity (see section 20.1 of this chapter);
2. They are ordinarily furnished by, or under arrangements made by the hospital or
CAH to its outpatients for the purpose of diagnostic study;
3. They would be covered as inpatient hospital services if furnished to an inpatient;
and
4. Payment is allowed under the hospital outpatient prospective payment system for
diagnostic services furnished at a facility that is designated as provider-based only
when those services are furnished under the appropriate level of supervision
specified in accordance with the definitions at 42 CFR 410.32(b)(3)(i), (b)(3)(ii),
and (b)(3)(iii), and as described in Chapter 15 of this manual, Section 80
“Requirements for Diagnostic X-ray, Diagnostic Laboratory, and Other
Diagnostic Tests,” as though they are being furnished in a physician’s office or
clinic setting. With respect to individual diagnostic tests, the supervision levels
listed in the quarterly updated Medicare Physician Fee Schedule (MPFS) Relative
Value File apply. For diagnostic services not listed in the MPFS, Medicare
contractors, in consultation with their medical directors, define appropriate
supervision levels in order to determine whether claims for these services are
reasonable and necessary.
Future updates to the MPFS relative value files will be issued in future Recurring Update
Notifications.
As specified at 42 CFR 410.28(f), for services furnished on or after February 21, 2002,
the provisions of paragraphs (a) and (d)(2) through (d)(4), inclusive, of 42 CFR 410.32
apply to all diagnostic laboratory tests furnished by hospitals and CAHs to outpatients.
Physician assistants, nurse practitioners, clinical nurse specialists, and certified nurse
midwives who operate within the scope of practice under State law may order and
perform diagnostic tests, as discussed in 42 CFR 410.32(a)(2) and corresponding
guidance in chapter 15, section 80 of this manual. However, this manual guidance and
the long established regulation at 42 CFR 410.32(b)(1) also state that diagnostic x-ray
and other diagnostic tests must be furnished under the appropriate level of supervision by
a physician as defined in section 1861(r) of the Act. Some of these non-physician
practitioners may perform diagnostic tests without supervision, see the regulation at
410.32(b)(2) and 42 CFR 410.32(b)(3). Thus, while physician assistants, nurse
practitioners, clinical nurse specialists, and certified nurse midwives only require
physician supervision included in any collaboration or supervision requirements
particular to that type of practitioner when they personally perform a diagnostic test,
these practitioners are not permitted to function as supervisory “physicians” for the
purposes of other hospital staff performing diagnostic tests.