This is the CodeSystem that contains codes in both ISO 639-2: Codes for the representation of names of languages -- Part 2: Alpha-3 code (http://terminology.hl7.org/CodeSystem/iso639-2) and ISO 639-2: Codes for the representation of names of languages -- Part 2: Alpha-3 code (http://terminology.hl7.org/CodeSystem/iso639-2).