SymptomWise: A Deterministic Reasoning Layer for Reliable and Efficient AI Systems

SymptomWise introduces a deterministic reasoning framework that separates language understanding from diagnostic inference in AI-driven medical systems, combining expert-curated knowledge with constrained LLM use to improve reliability and reduce hallucinations. The system achieved 88% accuracy in placing correct diagnoses in top-five differentials on challenging pediatric neurology cases, demonstrating how structured approaches can enhance AI safety in critical domains.