Hospital readmissions remain one of the most persistent challenges in modern healthcare, affecting patient outcomes, clinical workflows, and system sustainability. While predictive analytics have advanced significantly, many existing approaches rely heavily on structured electronic health record data, centralized cloud processing, and generic risk scoring that fail to reflect real clinical reasoning and privacy requirements at the point of care. This ebook presents an original privacy-preserving artificial intelligence framework for hospital readmission prediction that operates entirely within the browser environment. By applying biomedical transformer models to unstructured discharge narratives, the system captures disease-specific clinical context, symptom interactions, and recovery trajectories that are often invisible to conventional models. The framework introduces a modular clinical intelligence pipeline that integrates clinical natural language processing, contextual embedding, disease-aware risk modeling, stratified interpretation, and clinician-centered recommendations. Rather than producing abstract probabilities, the system generates interpretable risk categories supported by narrative explanation and disease-specific guidance. Designed for clinicians, healthcare AI professionals, clinical informaticians, and healthcare leaders, this work emphasizes trust, interpretability, governance, and operational feasibility. It demonstrates how advanced machine learning can support discharge planning and care coordination without compromising patient privacy or professional judgment. Beyond system design, the ebook documents the author's original contribution to healthcare AI architecture, presenting a privacy-by-design execution paradigm and a narrative-driven methodology for disease-specific prediction. It also outlines future extensions that enable adaptability as clinical practice and technology continue to evolve. Together, these elements position artificial intelligence as a clinically grounded partner in healthcare delivery rather than an opaque analytical tool, offering a responsible and practical approach to improving patient outcomes through contextual, privacy-preserving intelligence.