Field definition and scope:

Field 085 contains information about how a synthesized classification number or a portion of a synthesized classification number was built.  It traces the different components of a synthesized number, showing the different portions of the number and where the add instructions are given.  If a number was built using two or more instructions, a separate field 085 is given for each instruction.

The National level record requirement for this field is Mandatory if applicable.

Field 085 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:

Position

Description

NLR

MLR

Repeatability

Field 085

Synthesized Classification Number Components

A

O

R

Indicator:

 

 

 

 

First

Undefined; contains a blank

M

 

 

Second

Undefined; contains a blank

M

 

 

 

 

 

 

 

Subfield code:

 

 

 

 

$a

Number where instructions are found - single number or beginning number of span

O

O

R

$b

Base number

A

O

R

$c

Classification number - ending number of span

A

O

R

$f

Facet designator

A

O

R

$r

Root number

A

O

R

$s

Digits added from classification number in schedule or external table

A

O

R

$t

Digits added from internal subarrangement or add table

A

O

R

$u

Number being analyzed

O

O

R

$v

Number in internal subarrangement or add table where instructions are found

A

O

R

$w

Table identification - internal subarrangement or add table

A

O

R

$y

Table sequence number for internal subarrangement or add table

A

O

R

$z

Table identification

A

O

R

$0

Authority record control number or standard number

O

O

R

$6

Linkage

O

O

NR

$8

Field link and sequence number

O

O

R

 

See:  Examples for this field.

Input conventions:

Dewey Decimal Classification

Order of subfields

Content designator history:

Field 085 - Synthesized Classification Number Components  [new, 2008]

Subfield $0 - Authority record control number or standard number  [new, 2017]

See also:

0XX  Numbers and Codes

Variable Data Fields