Definition of Designated Health Services under the Stark Law Regulations
Designated health services (DHS) means any of the following services (other than those provided as emergency physician services furnished outside of the U.S.), as they are defined in this section:
(1)(i) Clinical laboratory services.
(ii) Physical therapy, occupational therapy, and outpatient speech-language pathology services.
(iii) Radiology and certain other imaging services.
(iv) Radiation therapy services and supplies.
(v) Durable medical equipment and supplies.
(vi) Parenteral and enteral nutrients, equipment, and supplies.
(vii) Prosthetics, orthotics, and prosthetic devices and supplies.
(viii) Home health services.
(ix) Outpatient prescription drugs.
(x) Inpatient and outpatient hospital services.
(2) Except as otherwise noted in this subpart, the term “designated health services” or DHS means only DHS payable, in whole or in part, by Medicare. DHS do not include services that are reimbursed by Medicare as part of a composite rate (for example, SNF Part A payments or ASC services identified at §416.164(a)), except to the extent that services listed in paragraphs (1)(i) through (1)(x) of this definition are themselves payable through a composite rate (for example, all services provided as home health services or inpatient and outpatient hospital services are DHS).