This interactive visualization presents a hierarchical tree of medical concepts, organized into a taxonomy of categories such as diseases, treatments, and biological processes. It uses D3.js v6 to render an animated, zoomable tree layout in SVG, where users can click nodes to expand or collapse their children. The tree is constructed from a JSON data source, with nodes categorized based on textual descriptions using regex pattern matching. The visualization dynamically resizes the canvas and updates node positions with smooth transitions, while a side panel displays details about the clicked node.