que ISO 639

Quechua

Quechua is classified as a “macrolanguage” in the ISO 639 standard and is assigned to [que] as its three-letter code. Macrolanguages were introduced into the standard in order to reconcile the fact that in some usage contexts the entity represented by the three-letter code is deemed to be a single language, while in other usage contexts it is subdivided into two or more individual languages, each of which has its own code. The individual languages that make up this macrolanguage are listed below.