who pays cash, or cash equivalent, for an item or service. (C) Gross charge The term gross charge means the charge for an individual item or service that is reflected on an applicable laboratory’s chargemaster, absent any discounts. (D) Payer-specific negotiated charge The term payer-specific negotiated charge means the charge that an applicable laboratory has negotiated with a third party payer for an item or service. (E) Specified clinical diagnostic laboratory test The term specified clinical diagnostic laboratory test means a clinical diagnostic laboratory test that is included on the list of shoppable services specified by the Centers for Medicare & Medicaid Services (as described in subsection (e)), other than such a test that is only available to be furnished by a single provider of services or supplier. (F) Third party payer The term third party payer means an entity that is, by statute, contract, or agreement, legally responsible for payment of a claim for a health care item or service. . 4. Imaging transparency Section 2718 of the Public Health Service Act ( 42 U.S.C. 300gg–18 ), as amended by section 3, is further amended by adding at the end the following: (g) Imaging services price transparency (1) In general Beginning January 1, 2025, each provider of services and supplier that receives payment from a group health plan or health insurance issuer for furnishing a specified imaging service, other than such a provider or supplier with respect to which standard charges and prices for such services furnished by such provider or supplier are made available by a hospital pursuant to subsection (e), shall— (A) make publicly available (in accordance with paragraph (3)) on an internet website the information described in paragraph (2) with respect to each such service that such provider of services or supplier furnishes