management services in contract with the plan or issuer. (b) Definitions In this section: (1) Consumer decision-support tool The term consumer decision-support tool means a tool designed to inform participants and beneficiaries in a group health plan or health insurance coverage about all costs to the participant or beneficiary for prescription drugs covered by the plan or coverage, including out-of-pocket, copayment, and coinsurance responsibility, as well as costs to the participant or beneficiary, such as purchasing at the cash price or purchasing through mail order pharmacy benefits. (2) Covered third party The term covered third party means a third party that is in contract, as a business associate (as defined in section 160.103 of title 45, Code of Federal Regulations (or successor regulations)), with a group health plan or a health insurance issuer offering group health insurance coverage to provide a consumer decision-support tool. (c) Rules of construction (1) Nothing in this section shall be construed to alter existing obligations of a covered entity or business associate under the privacy, security, and breach notification regulations in parts 160 and 164 of title 45, Code of Federal Regulations (or successor regulations). (2) Nothing in this section shall be construed to require a group health plan, a health insurance issuer offering group health insurance coverage, or an entity providing pharmacy benefit management services to share protected health information, as defined in section 160.103 of title 45, Code of Federal Regulations (or successor regulations), with a covered third party. . (2) Clerical amendment The table of contents in section 1 of the Employee Retirement Income Security Act of 1974 ( 29 U.S.C. 1001 et seq. ) is amended by inserting after the item relating to section 725 the following: Sec. 726. Prohibition on blocking consumer decision-support tools. . (c) Internal Revenue Code (1) In general Subchapter B of chapter 100 of the Internal Revenue Code of 1986, as amended by section 2,