As the previous code I posted didnt work for the OP, clutching at straws, we can try to obtain the same outcome using get_the_category
As the OP stated he was using YOAST, i'll wrap this function into the YOAST hook for robots.
add_filter('wpseo_robots', 'yoast_no_home_noindex', 999);
function yoast_no_home_noindex($string= "") {
$term_id = get_the_category( $post->ID );
if($term_id$term_id[0]->term_id === 92) {
$string= "index"noindex,follow"; nofollow";
}
return $string;
}
Same again, just drop this into your themes functions file.