Yes, cell value can be found from ui.rowData[ui.dataIndx]
var val = ui.rowData[ui.dataIndx]
and context menu item can be disabled based on cell value
function bodyItems(evt, ui){
var val = ui.rowData[ui.dataIndx], disabled = ( 1 < val < 10);
return [
{
name: "test",
disabled: disabled,
action: disabled? null: function(evt, ui){
// do something
}
}
]}