$basketPropertyCollection = $basketItem->getPropertyCollection();
$propertyValues = $basketPropertyCollection->getPropertyValues();
$MODIFICATION = $propertyValues['MODIFICATION']['VALUE'];
$SERVICE_CODE = $propertyValues['SERVICE_CODE']['VALUE'];
$REESTR = $propertyValues['REESTR']['VALUE'];
$OTDEL = $propertyValues['OTDEL']['VALUE'];
$WITHOUT_NDS = $propertyValues['WITHOUT_NDS']['VALUE'];