|First Indicator||Second Indicator|
|Type of edition
0 - Full
1 - Abridged
7 - Other edition specified in subfield $2
|Source of classification number
0 - Assigned by LC
4 - Assigned by agency other than LC
Single Dewey classification number or a number span associated with a 1XX heading in an established heading record or a subdivision record. Source of the classification number is the Dewey Decimal Classification and Relative Index; the Abridged Dewey Decimal Classification and Relative Index; and electronic updates to either edition. Through 1997, updates were issued in the DC& Dewey Decimal Classification Additions, Notes and Decisions.
Classification number(s) may be qualified by a descriptive term when the heading is represented in more than one place in the Dewey classification schedules. In a subdivision record, the field also contains the number of the table from which the classification number is taken. Each classification number or number span associated with a heading is contained in a separate 083 field. The second indicator values distinguish between content actually assigned by the Library of Congress and content assigned by an organization other than LC. The organization is identified in subfield $5.
First Indicator - Type of edition
Indicates the edition from which the Dewey Decimal classification is taken.
Class number is from the full edition.
Class number is from the abridged edition.
The edition is specified in subfield $2 (Edition number).
Second Indicator - Source of classification number
Whether the source of the classification number is the Library of Congress or another organization.
MARC code for the organization is contained in subfield $5.
$a - Classification number element-single number or beginning number of span
Single class number or the first number in a number span.
$b - Classification number element-ending number of span
Ending number of a number span when the beginning number of the span is contained in subfield $a.
|150||##$aWorld War, 1939-1945$vPersonal narratives|
$c - Explanatory term
Descriptive term or phrase that specifies the topic of the class number. Normally used to differentiate between two or more class numbers associated with the heading. Parentheses that enclose the phrase or term may be generated for display.
$y - Table sequence number for internal subarrangement or add table
Sequence number or other identifier for an internal classification subarrangement or add table. If the first or only add table found at a classification number is the number 1, succeeding integers are used for any following add tables found at that number.
$z - Table identification-table number
Number of the table from which the classification number in a subdivision record is taken. Subfield $z always precedes the associated subfield $a in the field.
$2 - Edition number
If numbers are assigned from more than one edition, each number or number span is contained in a separate 083 field.
|100||1#$aSartre, Jean Paul,$d1905-|
$5 - Institution to which field applies
$6 - Linkage
$8 - Field link and sequence number
|-||[hyphen associated with the content of subfields $a and $b]|
|( ... )||[parentheses associated with the content of subfield $c]|
|T||[abbreviation associated with the content of subfield $z]|
|-||[dash associated with the content of subfields $z and $a]|
|dc||[abbreviation associated with the content of subfield $2]|
Hyphen between the two class numbers in a number span in subfields $a and $b; the parentheses that may enclose an explanatory term in subfield $c in an established heading record; the abbreviation T before the table number in subfield $z; the dash between the table number and the class number in subfields $z and $a; and the abbreviation dc before the edition number in subfield $2 are not carried in the MARC record. They may be system generated as display constants associated with the content of subfields $a, $b, $c, $z, and $2, respectively.
|083||00$a346.3$b346.9$cSpecific jurisdictions and areas$222|
Display example:346.3-346.9 (Specific jurisdictions and areas) dc22
Display example:T4-5 dc22
Prior to 1995, field 083 was an agency-assigned field and contained only classifications numbers assigned by the Library of Congress.