This collection of languages does not have an ISO 639-3 code.
Translations outside of the MediaWiki scope (which uses it instead of the standard "nci" language code in ISO 639-3 for Classical Nahuatl) will be discarded.
The code [nah] in ISO 639-2 was for a collection of Nahuatl (or Aztecan) languages, now part of ISO 639-5 (i.e. a subfamily, not really a macrolanguage for ISO 639-3, because they are not easily intelligible between each other) which comprehends all Nahuatl languages (and their variants or dialects), but within MediaWiki projects, the code makes reference to Classical Nahuatl language, whose ISO 639-3 code is [nci] and so it will be translated. Therefore, [nah] in Wikimedia makes reference to Classical Nahuatl language rather than its modern variants (which are different enough to be encoded and translated separately, even if Classical Nahuatl may eventually be used as a common fallback for the modern variants; however the modern variants are creolized with the dominant Spanish language, so Spanish could be a better fallback for them than Classical Nahuatl). The most widely spoken five variants however will be gradually included in this page, the five as follow: Guerrero Nahuatl [ngu], Huasteco Nahuatl [nch], Orizaba Nahuatl [nlv], Tlaxcala-Puebla Nahuatl [nhn], and Morelos [nhm].
