This pie chart visualizes the distribution of average Gene_Y_Expression across different disease statuses (Healthy, Stage 1, Stage 2) from an ICE-7 dataset. The D3.v7 code groups CSV data by DiseaseStatus, computes mean expression values, and renders slices using `d3.pie()` and `d3.arc()`, with a legend showing the color-coded categories. The SVG output includes slice labels and a legend, all styled within a rounded card layout.