KKR, a private equity firm, led a $75m Series B round in Digital Diagnostics, an IA-based artificial intelligence diagnostic health care technology company, with participation from Cedar Pine, Edward-Elmhurst Health Venture, Kinderhook, 8VC and Optum Ventures, OSF Ventures. The company intends to use the funds to accelerate its product roadmap, expand its distribution footprint, and invest in sales and marketing.