OASIS M and G items are some of the most misunderstood and inconsistently taught components of home health documentation. Yet these questions play a critical role in how a patient’s functional and clinical status is represented across the episode of care. OASIS M and G Items Made Simple was written to help home health clinicians understand what these questions are actually asking and how to score them accurately based on real assessment findings in the home. Rather than relying on memorized definitions or agency shortcuts, this guide focuses on clinical reasoning, usual performance, and defensible documentation. It walks clinicians through functional G items and clinical M items using practical explanations, real-world home health scenarios, and common scoring pitfalls that often trigger reviews or corrections. This book emphasizes consistency across OASIS timepoints, including start of care, resumption of care, recertification, and discharge. Readers will learn how to evaluate functional ability, symptom impact, caregiver involvement, and safety considerations in a way that aligns with narrative documentation, therapy notes, and interdisciplinary care planning. Key topics include: • How Medicare views function, risk, and change over time • Scoring usual performance versus best performance • Accounting for supervision, cueing, and caregiver assistance • Understanding symptom-based M items such as pain and dyspnea • Avoiding common inconsistencies between M items, G items, and visit notes • Recognizing and correcting scoring issues ethically and appropriately This guide is not about inflating scores or documenting for payment. Its purpose is to reduce uncertainty, improve accuracy, and support ethical, defensible OASIS completion. Written by a practicing home health nurse, this book is designed to serve as a practical reference for clinicians at all experience levels. Whether you are new to home health or looking to strengthen your documentation confidence, OASIS M and G Items Made Simple provides clear guidance you can return to whenever questions arise.