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§162.103 Definitions.

For purposes of this part, the following definitions apply:

Code set

means any set of codes used to encode data elements, such as tables of terms, medical concepts, medical diagnostic codes, or medical procedure codes. A code set includes the codes and the descriptors of the codes.

Code set maintaining organization

means an organization that creates and maintains the code sets adopted by the Secretary for use in the transactions for which standards are adopted in this part.

Data condition

means the rule that describes the circumstances under which a covered entity must use a particular data element or segment.

Data content

means all the data elements and code sets inherent to a transaction, and not related to the format of the transaction. Data elements that are related to the format are not data content.

Data element

means the smallest named unit of information in a transaction.

Data set

means a semantically meaningful unit of information exchanged between two parties to a transaction.


means the text defining a code.

Designated standard maintenance organization (DSMO)

means an organization designated by the Secretary under §162.910(a).

Direct data entry

means the direct entry of data (for example, using dumb terminals or web browsers) that is immediately transmitted into a health plan's computer.


refers to those data elements that provide or control the enveloping or hierarchical structure, or assist in identifying data content of, a transaction.


stands for the Health [Care Financing Administration] Common Procedure Coding System.

Maintain or maintenance

refers to activities necessary to support the use of a standard adopted by the Secretary, including technical corrections to an implementation specification, and enhancements or expansion of a code set. This term excludes the activities related to the adoption of a new standard or implementation specification, or modification to an adopted standard or implementation specification.

Maximum defined data set

means all of the required data elements for a particular standard based on a specific implementation specification.


means a group of related data elements in a transaction.

Standard transaction

means a transaction that complies with the applicable standard adopted under this part.

[65 FR 50367, Aug. 17, 2000, as amended at 68 FR 8374, Feb. 20, 2003]

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