ONIX Code Lists Issue 27, October 2014
List 26: Main subject scheme identifier code

Value Description Notes

01 Dewey Dewey Decimal Classification.
02 Abridged Dewey
03 LC classification US Library of Congress classification.
04 LC subject heading US Library of Congress subject heading.
05 NLM classification US National Library of Medicine medical classification.
06 MeSH heading US National Library of Medicine Medical subject heading.
07 NAL subject heading US National Agricultural Library subject heading.
08 AAT Getty Art and Architecture Thesaurus heading.
09 UDC Universal Decimal Classification.
10 BISAC Subject Heading BISAC Subject Headings are used in the North American market to categorize books based on topical content. They serve as a guideline for shelving books in physical stores and browsing books in online stores. See 'https://www.bisg.org/complete-bisac-subject-headings-2013-edition'.
11 BISAC region code A geographical qualifier used with a BISAC subject category.
12 BIC subject category For all BIC subject codes and qualifiers, see ‘http://www.bic.org.uk/7/BIC-Standard-Subject-Categories/’.
13 BIC geographical qualifier
14 BIC language qualifier (language as subject)
15 BIC time period qualifier
16 BIC educational purpose qualifier
17 BIC reading level and special interest qualifier
18 DDC-Sachgruppen der Deutschen Nationalbibliografie Used for German National Bibliography since 2004 (100 subjects). Is different from value 30. See http://www.d-nb.de/service/pdf/ddc_wv_aktuell.pdf (in German) or http://www.d-nb.de/eng/service/pdf/ddc_wv_aktuell_eng.pdf (English).
19 LC fiction genre heading
20 Keywords Where multiple keywords or keyword phrases are sent in a single instance of the <SubjectHeadingText> element, it is recommended that they should be separated by semi-colons (this is consistent with Library of Congress preferred practice).
21 BIC children’s book marketing category See ‘http://www.bic.org.uk/8/Children’s-Books-Marketing-Classifications/’.
22 BISAC Merchandising Theme BISAC Merchandising Themes are used in addition to BISAC Subject Headings to denote an audience to which a work may be of particular appeal, a time of year or event for which a work may be especially appropriate, or to further describe fictional works that have been subject-coded by genre.
23 Publisher’s own category code
24 Proprietary subject scheme As specified in <SubjectSchemeName>.
25 Tabla de materias ISBN Latin America.
26 Warengruppen-Systematik des deutschen Buchhandels See ‘http://www.boersenverein.de/sixcms/media.php/976/WGSneuVersion2_0.pdf’.
27 SWD Schlagwortnormdatei – Subject Headings Authority File in the German-speaking countries. See http://www.d-nb.de/standardisierung/normdateien/swd.htm (in German) and http://www.d-nb.de/eng/standardisierung/normdateien/swd.htm (English). DEPRECATED in favour of the GND.
28 Thèmes Electre Subject classification used by Electre (France).
29 CLIL France. A four-digit number, see http://www.clil.org/information/documentation.html (in French). The first digit identifies the version of the scheme.
30 DNB-Sachgruppen Deutsche Bibliothek subject groups. Used for German National Bibliography until 2003 (65 subjects). Is different from value 18. See ‘http://www.d-nb.de/service/pdf/ddc_wv_alt_neu.pdf’.
31 NUGI Nederlandse Uniforme Genre-Indeling (former Dutch book trade classification).
32 NUR Nederlandstalige Uniforme Rubrieksindeling (Dutch book trade classification, from 2002),see http://www.boek.nl/nur (in Dutch).
33 ECPA Christian Book Category ECPA Christian Product Category Book Codes, consisting of up to three x 3-letter blocks, for Super Category, Primary Category and Sub-Category. See ‘http://www.ecpa.org/ECPA/cbacategories.xls’.
34 SISO Schema Indeling Systematische Catalogus Openbare Bibliotheken (Dutch library classification).
35 Korean Decimal Classification (KDC) A modified Dewey Decimal Classification used in the Republic of Korea.
36 DDC Deutsch 22 German Translation of Dewey Decimal Classification 22. Also known as DDC 22 ger. See ‘http://www.ddc-deutsch.de/produkte/uebersichten/’.
37 Bokgrupper Norwegian book trade product categories (4701).
38 Varegrupper Norwegian bookselling subject categories (4702).
39 Læreplaner Norwegian school curriculum version (4703).
40 Nippon Decimal Classification Japanese subject classification scheme.
41 BSQ BookSelling Qualifier: Russian book trade classification.
42 ANELE Materias Spain: subject coding scheme of the Asociación Nacional de Editores de Libros y Material de Enseñanza.
43 Skolefag Norwegian primary and secondary school subject categories (4705).
44 Videregående Norwegian list of categories used in higher secondary education and vocational training (4706).
45 Undervisningsmateriell Norwegian list of categories for books and other material used in education (4707).
46 Norsk DDK Norwegian version of Dewey Decimal Classification.
47 Varugrupper Swedish bookselling subject categories.
48 SAB Swedish classification scheme.
49 Läromedel Swedish bookselling educational subject.
50 Förhandsbeskrivning Swedish publishers preliminary subject classification.
51 Spanish ISBN UDC subset Controlled subset of UDC codes used by the Spanish ISBN Agency.
52 ECI subject categories Subject categories defined by El Corte Inglés and used widely in the Spanish book trade.
53 Soggetto CCE Classificazione commerciale editoriale (Italian book trade subject category based on BIC). CCE documentation available at ‘http://www.ie-online.it/CCE2_2.0.pdf’.
54 Qualificatore geografico CCE
55 Qualificatore di lingua CCE
56 Qualificatore di periodo storico CCE
57 Qualificatore di livello scolastico CCE
58 Qualificatore di età di lettura CCE
59 VdS Bildungsmedien Fächer Subject code list of the German association of educational media publishers.
60 Fagkoder Undervisningsdirektoratets fagkoder for kunnskapsløftet I videregående (Norwegian educational curriculum for secondary schools) (4708).
61 JEL classification Journal of Economic Literature classification scheme.
62 CSH National Library of Canada subject heading (English).
63 RVM Répertoire de vedettes-matière (Bibliothèque et Archives Canada et Bibliothèque de l’Université Laval) (French).
64 YSA Yleinen suomalainen asiasanasto: Finnish General Thesaurus. See http://onki.fi/fi/browser/ (in Finnish).
65 Allärs Allmän tesaurus på svenska: Swedish translation of the Finnish General Thesaurus. See http://onki.fi/fi/browser/ (in Finnish).
66 YKL Yleisten kirjastojen luokitusjärjestelmä: Finnish Public Libraries Classification System. See http://ykl.kirjastot.fi/ (in Finnish).
67 MUSA Musiikin asiasanasto: Finnish Music Thesaurus. See http://onki.fi/fi/browser/ (in Finnish).
68 CILLA Specialtesaurus för musik: Swedish translation of the Finnish Music Thesaurus. See http://onki.fi/fi/browser/ (in Finnish).
69 Kaunokki Fiktiivisen aineiston asiasanasto: Finnish thesaurus for fiction. See http://kaunokki.kirjastot.fi/ (in Finnish).
70 Bella Specialtesaurus för fiktivt material: Swedish translation of the Finnish thesaurus for fiction. See http://kaunokki.kirjastot.fi/sv-FI/ (in Finnish).
71 YSO Yleinen suomalainen ontologia: Finnish General Upper Ontology. See http://onki.fi/fi/browser/ (In Finnish).
72 Paikkatieto ontologia Finnish Place Ontology. See http://onki.fi/fi/browser/ (in Finnish).
73 Suomalainen kirja-alan luokitus Finnish book trade categorisation.
74 Sears Sears List of Subject Headings.
75 BIC E4L BIC E4Libraries Category Headings, see ‘http://www.bic.org.uk/51/E4libraries-Subject-Category-Headings/’.
76 CSR Code Sujet Rayon: subject categories used by bookstores in France.
77 Suomalainen oppiaineluokitus Finnish school subject categories.
78 Japanese book trade C-Code See ‘http://www.asahi-net.or.jp/~ax2s-kmtn/ref/ccode.html’ (in Japanese).
79 Japanese book trade Genre Code
80 Fiktiivisen aineiston lisäluokitus Finnish fiction genre classification. See http://ykl.kirjastot.fi/fi-FI/lisaluokat/ (in Finnish).
85 Postal code Location defined by postal code. Format is two-letter country code (from List 91), space, postal code. Note some postal codes themselves contain spaces, eg “GB N7 9DP” or “US 10125”.
86 GeoNames ID ID number for geographical place, as defined at http://www.geonames.org (eg 2825297 is Stuttgart, Germany, see http://www.geonames.org/2825297).
87 NewBooks Subject Classification Used for classification of academic and specialist publication in German-speaking countries. See http://www.newbooks-services.com/de/top/unternehmensportrait/klassifikation-und-mapping.html (German) and http://www.newbooks-services.com/en/top/about-newbooks/classification-mapping.html (English).
91 GND Gemeinsame Normdatei – Joint Authority File in the German-speaking countries. See http://www.dnb.de/EN/Standardisierung/Normdaten/GND/gnd_node.html (English). Combines the PND, SWD and GKD into a single authority file, and should be used in preference to the older codes.
92 BIC UKSLC UK Standard Library Categories, the successor to BIC’s E4L classification scheme.
93 Thema subject category
94 Thema geographical qualifier
95 Thema language qualifier
96 Thema time period qualifier
97 Thema educational purpose qualifier
98 Thema interest age / special interest qualifier
99 Thema style qualifier
A2 Ämnesord Swedish subject categories maintained by Bokrondellen.
A3 Statystyka Książek Papierowych, Mówionych I Elektronicznych Polish Statistical Book and E-book Classification.
A4 CCSS Common Core State Standards curriculum alignment, for links to US educational standards. <SubjectCode> uses the full dot notation. See ‘http://www.corestandards.org/developers-and-publishers’.
A5 Rameau French library classification.
A6 Nomenclature discipline scolaire French educational subject classification, used for example on WizWiz.fr. See ‘http://www.kiosque-edu.com/html/onix/Nomenclature_disciplines.csv’.
A7 ISIC International Standard Industry Classification, a classification of economic activities. Use for books that are about a particular industry or economic activity. See ‘http://unstats.un.org/unsd/cr/registry/isic- 4.asp’. <SubjectCode> should be a single letter denoting an ISIC section OR a 2-, 3- or 4-digit number denoting an ISIC division, group or class.