There are some great fan-designed 3D models, many very faithful to the original blueprints, that a snapshot could work quite well for a tabletop battle-grid. Credit always goes to the 3D modeler. I only add missing bits and a bit of colour. Search here for the full series.
3D modeler Trekie designed this generic sickbay and corridors that you can use on any space station or ship. It’s up to you where the various doors lead.
Generic Sickbay (PDF)