Summarized by Plex Health
Last Updated: 04 May 2022

A segmentation mark is used to suggest completion of an Abridged Edition 15 number within a DDC 23 number. The Dewey Program uses a reduce in the 082 MARC area to suggest where to sector: The prime mark is used for segmentation in DDC numbers when Cataloging in Publication Program information are published in guide: 940. 3 2252. If they were imported into the Library of Congress catalog using the copy cataloging work stream, Dewey numbers typically will not have segmentation. As an example, 551. 21/ 09797/84 consists of a segmentation reduce prior to the zero that notes the begin of the common neighborhood T1, 09 and a second lower at the end of the abridged number.

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