681 Classification Example Tracing Note

Field definition and scope:

Field 681 contains a note that documents the use of the classification number in field 153 (Classification Number) of the record as an example or reference in field 253 (Complex See Reference), 353 (Complex See Also Reference) and/or 6XX note fields of another record. It permits the updating of the 253, 353, or 6XX fields in the related record when a change is made to a 153 field.

The information in this field is primarily intended to serve as a tracing of the use of classification numbers in examples and notes to assist classifiers in updating records. It is often not written in a form adequate for public user display.

Field 681 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, and designator repeatability, see table below:

Position	Description	Repeatability
Field 681	Classification Example Tracing Note	R
Indicator:
First	Undefined; contains a blank
Second	Undefined; contains a blank

Subfield code:
$a	Classification number - single number or beginning number of span	R
$c	Classification number - ending number of span	R
$i	Explanatory text	R
$y	Table sequence number for internal subarrangement or add table	R
$z	Table identification	R
$6	Linkage	NR
$8	Field link and sequence number	R

See: Examples for this field.

Scheme-specific conventions:

Dewey Decimal Classification

Content designator history:

Subfield $y - Table sequence number for internal subarrangement or add table [new, 2008]