42 U.S. Code § 1320d - Definitions
The term “code set” means any set of codes used for encoding data elements, such as tables of terms, medical concepts, medical diagnostic codes, or medical procedure codes.
The term “health care clearinghouse” means a public or private entity that processes or facilitates the processing of nonstandard data elements of health information into standard data elements.
The term “standard”, when used with reference to a data element of health information or a transaction referred to in section 1320d–2(a)(1) of this title, means any such data element or transaction that meets each of the standards and implementation specifications adopted or established by the Secretary with respect to the data element or transaction under sections 1320d–1 through 1320d–3 of this title.
The term “standard setting organization” means a standard setting organization accredited by the American National Standards Institute, including the National Council for Prescription Drug Programs, that develops standards for information transactions, data elements, or any other standard that is necessary to, or will facilitate, the implementation of this part.
The term “operating rules” means the necessary business rules and guidelines for the electronic exchange of information that are not defined by a standard or its implementation specifications as adopted for purposes of this part.
 So in original. Probably should be “Part”.
The Indian Health Care Improvement Act, referred to in par. (5)(L), is Pub. L. 94–437, Sept. 30, 1976, 90 Stat. 1400, which is classified principally to chapter 18 (§ 1601 et seq.) of Title 25, Indians. For complete classification of this Act to the Code, see Short Title note set out under section 1601 of Title 25 and Tables.
2010—Par. (9). Pub. L. 111–148 added par. (9).
2009—Par. (5)(D). Pub. L. 111–5 substituted “C, or D” for “or C”.
2001—Par. (5)(D). Pub. L. 107–105 substituted “Parts A, B, or C” for “Part A or part B”.