Book excerpt: Prepare for the changing healthcare field with current disease pathology information and ICD-10-CM codes for more than 500 commonly encountered conditions with Essentials of Human Diseases and Conditions, 5th Edition. Consistently organized and easy to read, this portable, practical reference provides the comprehensive disease information you need to successfully perform common clinical and administrative medical assisting responsibilities you'll encounter in the physician's office, including telephone screening, taking patient examinations, understanding diagnostic and treatment procedures, assembling patient education programs, and more. Enrichment boxes relate disease information to everyday practice. ICD-9-CM and ICD-10-CM codes included for each disease entry provide valuable practice looking up codes and illustrate differences between the two code sets. Current information on the most commonly encountered clinical disorders is presented in small segments for easier understanding. Full-color illustrations clarify difficult concepts. Consistent coverage for all diseases walks you through each step of patient care and treatment, including: Description Symptoms and Signs Patient Screening UNIQUE! Etiology Diagnosis Treatment Prognosis Prevention Patient Teaching Pharmacology appendix details drug names, therapeutic objectives, side effects, and general comments for commonly prescribed drugs. Alerts highlight safety precautions for physician-based practice. Review Challenges reinforce content and reveal areas requiring additional study. Real-life Challenges test your ability to apply chapter content to real-world cases. Internet activities on the companion Evolve site broaden your understanding and direct you to additional information available online. Anatomy and physiology reviews of specific body systems include clearer descriptions and more illustrations, helping students compare systems in normal and disease states. Coverage of Avian Flu describes how diseases emerge from the animal to the human world, and prepares medical assistants for the potential dangers of this disease. Key Terms include pronunciations and are broken down into prefixes, roots and suffixes.