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`][1]
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 = 92) {
             $string= "index,follow";
          }
          return $string; 
    }

Same again, just drop this into your themes functions file.

  [1]: https://developer.wordpress.org/reference/functions/get_the_category/