Nosology.AI

A free, multilingual (EN, PT, ES) catalog of 7,000+ diseases organized by ICD-10. Every record links symptoms (with typicality and specificity), 1,187 diagnostic tests, risk factors, treatments, prevalence by continent and a level of evidence. Enter symptoms to get a ranked differential, compare two diseases side by side, or explore the global disease atlas. Built to make medical knowledge searchable, transparent and structured.