The Health Navigator platform is a comprehensive clinical vocabulary and decision-support system designed to support eHealth and telemedicine encounters – from the presenting chief complaint to the final diagnosis. The platform includes a broad range of tools for capturing the chief complaint through natural language processing, presenting a documentation checklist to consumers and healthcare providers, generating a list of possible causes, and making recommendations for seeking care. These tools can be used to develop symptom checker, health bot, consumer engagement, and telehealth applications. All content is delivered via a well-documented application programming interface (API; RESTful web service). Health Navigator can provide solutions for eHealth, telemedicine, insurers, medical call centers, electronic health record companies, answering services, and healthcare systems. Follow us on Twitter @HlthNavigator