existent shortcodes parsed if wrapped inside <code> tag

[axewww]

[mycustomshort]

no way i try to add something like this into a post, that may need to be a documentation, so code should display as is and not parsed.
If i go to add any shortcode that is recognized as valid/existent, it is by the way parsed as shortcode even if wrapped inside <pre><code> tags:
All ok about this?

[ocean90]

Hello @axewww

If you want to not render shortcodes you can escape them by doubling the brackets, like in [[mycustomshort]]. For more see ​https://codex.wordpress.org/Shortcode#Escaping_Shortcodes.