Library of Congress >> MARC >> Bibliographic >> 01X-09X

01X-09X - Numbers and Codes-General Information


MARC 21 Bibliographic
December 2023

"Full" documentation refers to the MARC 21 Format for Bibliographic Data that contains detailed descriptions of every data element, along with examples, input conventions and history sections.

"Concise" documentation refers to the MARC 21 Format for Bibliographic Data that contains abridged descriptions of every data element, along with examples.


DEFINITION AND SCOPE

Fields 01X-09X contain standard numbers, classification numbers, codes, and other data elements relating to the record.


CONTENT DESIGNATOR HISTORY

Field 011 - Linking Library of Congress Control Number (BK, MP, MU, VM, SE, USMARC only) [OBSOLETE, 1993]
Both indicator positions were undefined. A subfield $a (Linking LC control number) was defined. Linking Library of Congress control numbers may be recorded in the 760-787 linking entry fields.
Field 023 - Cluster ISSN [NEW, 2023]
Field 026 - Fingerprint identifier [NEW, 2002]
Field 028 - Publisher Number [REDEFINED, 2016]
Field 028 was renamed and redefined to include distributor numbers.
Field 031 - Musical Incipits Information [NEW, 2004]
Field 038 - Record Content Licensor [NEW, 2002]
Field 039 - Level of Bibliographic Control and Coding Detail [OBSOLETE, 1986]
Field 039 was made obsolete when Leader/17 (Encoding level) code 7 was redefined to identify cataloging that conforms to national minimal level requirements. Field 039 was defined in 1980 to allow an organization to characterize the fullness of various cataloging aspects of records contributed to a national database.
First indicator position specified the standard against which the data were applied (0 = U.S. national level bibliographic record; 8 = Other); the second indicator was undefined. The subfield codes and the defined codes for each were: $a Level of rules used in bibliographic description (0 = No level defined by rules, 1 = Minimal, 2 = Less than full, 3 = Full); $b Level of effort used to assign nonsubject heading access points (2 = Less than full, 3 = Full); $c Level of effort used to assign subject headings (0 = None, 2 = Less than full, 3 = Full); $d Level of effort used to assign classification (0 = None, 2 = Less than full, 3 = Full); $e Number of fixed field character positions coded (0 = None, 1 = Minimal, 2 = Most necessary, 3 = Full).
Field 043 - Geographic Area Code [CHANGED, 2020]
Field 043 was changed to repeatable.
Field 046 - Special Coded Dates [REDEFINED, 2002]
Field 046 was redefined as a repeatable field.
Field 047 - Form of musical composition code [REDEFINED, 2006]
Field 047 was redefined as a repeatable field.
Field 083 - Additional Dewey Decimal Classification number [NEW, 2008]
Field 085 - Synthesized classification number components [NEW, 2008]
Field 087 - Report Number [OBSOLETE, 1997] [CAN/MARC only]
Both indicator positions were undefined. The subfield codes were: $a (Report number) and subfield $z (Canceled/invalid report number).
Field 088 - Document Shelving Number (CODOC) [REDEFINED, 1997] [CAN/MARC only]
Both indicator positions were undefined. The subfield codes were: $a (Report number) and subfield $z (Canceled/invalid report number).

Library of Congress >> MARC >> Bibliographic >> 01X-09X
(12/07/2023)
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