Field definition and scope:

Field 185 contains a form or genre term used as a heading in a subdivision record.

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

Field 185 is NOT repeatable.

Guidelines for applying content designators:

The content designators identify the subelements occurring in form subdivision headings constructed according to generally accepted thesaurus-building conventions (e.g., Medical Subject Headings).

A form subdivision is used as a subdivision portion of an extended subject or index term access field in bibliographic records.

A form term that is used as the lead element of an established heading record is contained in a 155 (Heading - Genre/Form Term) field.

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

Position

Description

NLR

Repeatability

Field 185

Heading - Form Subdivision

A

NR

Indicator:

 

 

 

First

Undefined; contains a blank

M

 

Second

Undefined; contains a blank

M

 

 

 

 

 

Subfield code:

 

 

 

$v

Form subdivision

M

R

$x

General subdivision

A

R

$y

Chronological subdivision

A

R

$z

Geographic subdivision

A

R

$6

Linkage

A

NR

$8

Field link and sequence number

O

R

 

See:  Examples for this field.

Input conventions:

Punctuation

Spacing

Display constant

Use of subfields $v, $x, $y, and $z in LCSH

LC Guidelines:

  185  Heading - Form Subdivision

Related MARC field or document:

X85  Form Subdivisions - General Information

See also:

1XX, 3XX  Headings

Variable Data Fields