This interactive tree diagram visualizes a hospital’s operational hierarchy, from departments like Pharmacy and Laboratory down to individual patient statuses such as “Serving” or “Waiting.” Built with React and D3 v3, it uses a collapsible layout with SVG nodes and animated transitions. Users can pan, zoom, and click nodes to expand or collapse branches, with red blinking highlights drawing attention to specific states. Supplementary tables and timelines display patient details and token information, while a legend allows resetting the view to its initial state.