ONIX Code Lists Issue 36, January 2017
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 For indexing and search purposes, not normally intended for display. Where multiple keywords or keyword phrases are sent, this should be in a single instance of the <SubjectHeadingText> element, and 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://info.vlb.de/files/wgsneuversion2_0.pdf (in German)
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 (Bokgrupper) administered by the Norwegian Publishers Association (http://www.forleggerforeningen.no/)
38 Varegrupper Norwegian bookselling subject categories (Bokhandelens varegrupper) administered by the Norwegian Booksellers Association (http://bokhandlerforeningen.no/)
39 Læreplaner Norwegian school curriculum version. Deprecated
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 Utdanningsprogram Codes for Norwegian ‘utdanningsprogram’ used in secondary education. See: http://www.udir.no/. (Formerly labelled ‘Skolefag’)
44 Programområde Codes for Norwegian ‘programområde’ used in secondary education. See http://www.udir.no/. (Formerly labelled ‘Videregående’ or ‘Programfag’)
45 Undervisningsmateriell Norwegian list of categories for books and other material used in education
46 Norsk DDK Norwegian version of Dewey Decimal Classification
47 Varugrupper Swedish bookselling subject categories
48 SAB Swedish classification scheme
49 Läromedelstyp Swedish bookselling educational subject type
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 Norwegian primary and secondary school subject categories (fagkoder), see http://www.udir.no/
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 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/gnd (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 subject headings
A6 Nomenclature discipline scolaire French educational subject classification scolomfr-voc-015, used for example on WizWiz.fr. See http://www.lom-fr.fr/scolomfr/vocabulaires/consultation-des-vocabulaires.html
A7 ISIC International Standard Industry Classification, a classification of economic activities. Use for books that are about a particular industry or economic activity. <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. See http://unstats.un.org/unsd/cr/registry/isic-4.asp
A8 LC Children’s Subject Headings Library of Congress Children’s Subject Headings: LCSHAC supplementary headings for Children’s books
A9 Ny Läromedel Swedish bookselling educational subject
B0 EuroVoc EuroVoc multilingual thesaurus. <SubjectCode> should be a EuroVoc concept dc:identifier (for example, 2777, ‘Refrigerated products’). See http://eurovoc.europa.eu
B1 BISG Educational Taxonomy Controlled vocabulary for educational objectives. See https://www.bisg.org/educational-taxonomy