Brazilian startup Carecode has emerged from stealth, backed by a16z and QED, aiming to revolutionize healthcare by employing AI agents for appointment management tasks. Founded by healthcare veteran Thomaz Srougi, Carecode seeks to reduce costs and enhance outcomes by automating pre- and post-appointment processes traditionally handled by call centers. With a $4.3 million pre-seed funding round, the startup targets the $100 billion spent annually by Brazilian healthcare firms on contact centers. Carecode is designed for local preferences, enabling communication via WhatsApp, appealing especially to older and low-income individuals.