On table 2, page 6 of the datasheet for the ST VN5E160MS-E Single-channel high-side driver the manufacturer provides guidance on what to do with unused pins on the IC package.
Instead of a text instruction, some items are marked with an 'X' which seems to be undefined in the datasheet.
Looking at the CS_DIS pin, for example, is the manufacturer suggesting that the pin (if not used) is able to be left floating or to be placed 'Through [sic] 10 kΩ resistor' to ground?
Or, are they suggesting that leaving it floating is an invalid option?