Send multiple values with jQuery [ input_id: $(this).val() ]

Good evening experts!

I would like to send in addition to code_sms: $(this).val() a second value sel_reference: $(this).val() but I can not. I am using this piece of code to launch a search query for a value in my table, only with one criterion, or I need to put several of them.
Can you help me please ?
Here is my code

$("#mask_codes").keyup(function(e) {
if(document.getElementById("mask_codes").value.length > 5 ) {
    
    $("#verif_ico").html("<i class='fal fa-spinner fa-pulse text-info'></i>").fadeIn("slow");
    $.post("_check-sms.php", {
        
        code_sms: $(this).val()

    }, function(datas){
        if (datas == 'yes') {
            $("#verif_ico").show();
            $("#verif_ico").fadeTo(200, 0.1, function() {$(this).html("<i class='fas fa-check text-success'></i>").fadeTo(900, 1);});
            $("#btn_confirmer").attr("disabled", false);
        } else {
            $("#verif_ico").show();
            $("#verif_ico").fadeTo(200, 0.1, function() {$(this).html("<i class='fas fa-ban text-danger'></i>").fadeTo(900, 1);});
            $("#btn_confirmer").attr("disabled", true);
        }
    });
}
});

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