; and (ii) the beneficiary assigns payment to the eligible professional for any claims filed by, or on behalf of, the beneficiary with the Secretary and any supplemental insurance plan for items or services furnished under the contract. (D) Exclusion of dual eligible individuals Paragraph (1) shall not apply to any contract if a beneficiary who is eligible for medical assistance under title XIX is a party to the contract. (4) Limitation on actual charge and claim submission requirement not applicable Section 1848(g) shall not apply with respect to any item or service provided to a Medicare beneficiary under a contract described in paragraph (1). (5) Construction Nothing in this section shall be construed— (A) to prohibit any eligible professional from maintaining an election and acting as a participating or non-participating physician or practitioner with respect to any patient not covered under a contract established under this section; and (B) as changing the items and services for which an eligible professional may bill under this title. (6) Definitions In this subsection: (A) Medicare beneficiary The term Medicare beneficiary means an individual who is entitled to benefits under part A or enrolled under part B. (B) Eligible professional The term eligible professional has the meaning given such term in section 1848(k)(3)(B). (C) Emergency medical condition The term emergency medical condition means a medical condition manifesting itself by acute symptoms of sufficient severity (including severe pain) such that a prudent layperson, with an average knowledge of health and medicine, could reasonably expect the absence of immediate medical attention to result in— (i) serious jeopardy to the health of the individual or, in the case of a pregnant woman, the health of the woman or her unborn child; (ii) serious impairment to bodily functions; or (iii) serious dysfunction of any bodily organ or part. (D) Participating