A system for use by a medical professional, for diagnosing a cause of a patient medical condition and for providing a patient medical condition report, including a diagnosis and treatment

A web-based platform guides a user's encounter with a patient and generates a medical record of the encounter. The web-based platform comprises a processor in communication with an output display device and an input user interface, and a knowledge base. The processor outputs information to the output display device, 5 accesses the knowledge base, and receives input from the input user interface. The output display device requests patient information in response to presented successive prompts for patient medical information. The prompts are responsive to the knowledge base and to prior responses to prior prompts as entered through the input user interface. The output display device presents a patient medical condition 10 report based on responses to requests and prompts. ICD codes are included within the knowledge base and included within the patient medical condition report. The codes are determined, as applicable, as each prompt and response is entered.