Brazilian startup Carecode has raised $4.3 million in a pre-seed round to develop its AI-powered customer service for healthcare.The service uses conversational AI to provide healthcare companies with brand-oriented, efficient, and empathetic customer care.Early tests show that Carecode's AI agents can handle tasks performed by healthcare call centers at a lower cost.The platform currently supports text and audio messages on WhatsApp, with voice call support planned for the future.