The "ICD-10-CM Documentation 2019" book by the American Medical Association is a crucial resource for those in the medical field seeking essential charting guidance to support medical necessity. With 450 pages of detailed information, this textbook provides valuable insights into medical coding and billing through its focus on ICD-10-CM documentation. Written in English and formatted as a trade paperback, this book is designed for adult education and technical levels, making it a valuable addition to the knowledge base of professionals in allied health services.