exclude category from shortcode

Hello,

Thank you for the awesome theme.

I have a category for displaying posts on the home page, but while I want to filter on it, I don’t want it visible in the list generated by this code:

<?php echo apply_atomic_shortcode( 'byline', '<div class="byline">' . __( 'in [entry-terms taxonomy="category" before=""] [entry-edit-link before=" &middot; "]', 'origin' ) . '</div>' ); ?>

I still want the other categories to show, just not my “Home” category. I created a child theme and I wonder if there is any way to alter it in the child theme without editing the core theme (not sure how to do it this way either)?

Thank you in advance,
Donna