Retired in ISO 639-3: Split into Keak [keh] and Sos Kundi [sdk]
Excerpt from change request document:
The two languages are not inherently intelligible; the speakers of Sos Kundi identify their language as different from Keak, similarly the speakers of Keak identify their language as different to Sos Kundi; the lexical similarity of the two languages is 68%; there is no common literature.