Scroll/pinch to zoom.
Hover/touch node to display full diagnosis designators (3-character ICD-10 category, 'p' suffixes primary diagnoses and 's' secondary ones)
Double click / double tap on network to toggle fullscreen.
Click a node to select it and highlight (thicken) adjacent edges. Adjacent nodes will remain colored, others are greyed.
Click outside any node to deselect any nodes.