exclude a cutom field from displaying

Is there a way to use the “<?php echo do_shortcode(‘[custom_fields_block]’:wink:; ?>” code AND display all but one of the custom fields? We currently have nineteen custom fields and want them all to display in a post, except for one. It’s just for the admin’s use.

The site is still under development so I want any future custom fields to be automatically displayed. We just know that there is one particular field that we will never want the public to see.