Page 117 it states 10k in two places; text and notes. Page 190 says 2.5 with a NOTE, that says 10k is allowable with an increased acquisition time. That basically means extra time to charge the sampling cap. If you plug your numbers into equation 12-1 on pg. 117 you will get the appropriate time required. IIRC, the fastest it can go is around 30-35kHz, so with a 10k R, you'll have to slow it down to be reliable.

However, if you don't need 10bit accuracy, it probably doesn't matter.