Both Suzuki & Nyima (2016) and Tournadre (2014) classifies Basum, under Sino-Tibetan language family, to be an unclassified Bodish language and non-Tibetic language.
Suzuki & Nyima (2016) consider Basum to be a non-Tibetic language. Tournadre (2014) classifies Basum (Bake) as an unclassified Bodish language that does not belong to the Tibetic branch. Sino-Tibetan 
