753 - Index Term-Uncontrolled (R)
MARC 21 Classification - Concise
2007
Uncontrolled index terms to supplement terms derived from data in the MARC
classification record that are not derived from a controlled subject heading
system/thesaurus that provide subject access to a classification number or span in field
153 (Classification number) or an index term in field 154 (General Explanatory Index
Term).
Indicators
First - Undefined
# - Undefined
Second - Type of term or name
# - No information provided
0 - Topical term
1 - Personal name
2 - Corporate name
3 - Meeting name
4 - Chronological term
5 - Geographic name
6 - Genre/form term
Subfield Codes
$a - Index term (R)
Terms comprising the entry in an index to a classification schedule. If the entry
consists of several terms at several levels, additional levels are contained in
subfield $b (Index term--succeeding level)
$b - Index term-succeeding level (R)
Term at a level after the first in an index term. May also be used for the
succeeding level of an index term referred from, which is contained in subfield
$d.
$d - Index term referred from (R)
Index term that refers to another index term, either as a see or see also
reference. When subfield $d is used, the field also contains either
subfield $s (See also reference term) or subfield $u (Use
reference term).
$e - Example class number (R)
$i - Explanatory text (R)
$s - See also reference term (NR)
Term to which a see also reference is made from the term in subfield $d
(Index term referred from).
$t - See also reference term-succeeding level (R)
Term at a level after the first in a see also reference term.
$u - Use reference term (NR)
Term under which a classification number citation will appear when the term in
subfield $d (Index term referred from) or field 154 (General
Explanatory Index Term) contains an unused term.
$v - Use reference term-succeeding level (R)
Term at a level after the first under which a classification number citation will
appear when the term in subfield $d (Index term referred from) or field
154 (General Explanatory Index Term) contains an unused term.
$8 - Field link and sequence number (R)
Examples
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##$aWolf children in literature$bAmerican$bCollections$bProse
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##$aDemand$bforecasts$bsecondary industries
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##$dCompulsive lying$sMental illness
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##$iForm number 20 in any NLM schedule where
applicable
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##$iIn a particular area, with the subject of the original
study, e.g. Heart Diseases,$eWG 210
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##$aEmployment services$bsocial services
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##$aSheltered employment
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##$dSheltered employment$sEmployment services$tsocial services
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##$aDairy products$bproduct safety
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##$dDairy products$bproduct safety$sFood$tproduct safety
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##$dState labor$bWages$uWages$vState labor
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##$dComputers$bmusic$sElectrophones |