Text label next to POI in custom rendering

[Mika Van de wiel]

So i am creating a custom rendering for my local MTB trail. We have these little posts that have a code on them so that in the case of an accident you can give that code to the 911 dispatcher. These posts are mapped on OSM but do not appear in any rendering. So I have created my own rendering that shows these little posts. This works great however it only shows a little symbol, and not the actual code assigned to that pole. I want to add a little text next to the marker that displays the code. This code is stored in the ref="code goes here" So it basically needs to display whatever value is stored in the ref tag as a little text label next to the icon on the map. This is the line i used to display the markers:

<case minzoom="16" tag="highway" value="emergency_access_point" icon="emergency_access_point" shield="red_round_shield" iconOrder="85"/>




What do i need to add to this to display the text value stored in the ref tag? I am kind of a new in the whole rendering stuff, so I hope you guys could explain it on a pretty basic level.