ICD-10-CM 2018: The Complete Official Codebook provides the entire updated code set for diagnostic coding, organized to make the challenge of accurate coding easier. This codebook is the cornerstone for establishing medical necessity, determiningcoverage and ensuring appropriate reimbursement.Each of the 21 chapters in the Tabular List of Diseases and Injuries is organized to provide quick and simple navigation to facilitate accurate coding. The book also contains supplementary appendixes including a coding tutorial, pharmacology listings, a list of valid three-character codes and additional information on Z-codes for long-term drug use and Z-codes that can only be used as a principal diagnosis.Features and BenefitsNEW! HCC risk adjustment symbol. The symbol Identifies those diagnoses in the tabular list associated with CMS hierarchical condition categories (HCCs).NEW! Appendix on risk adjustment coding and reporting requirements. This appendix supplies the details needed forHCC codingNEW! List of deleted codes. Quickly see the complete list of codes removed from the ICD-10CM code set since publication of the 2017 edition.Illustrations and definitions in the tabular listing. Assign codes with confidence based on illustrations and definitions designed to highlight key components of the disease process or injury.Intuitive features and format. This edition includes visual alerts, including color-coding and symbols that identify coding notes and instructions, additional character requirements, Medicare Code Edits (MCEs), manifestation codes, other specified codes, and unspecified codes.Coding guideline explanations and examples. Detailed explanations and examples related to application of the ICD-10-CM chapter guidelines are provided at the beginning of each chapter in the tabular section.Muscle/tendon translation table. This table is used to determine muscle/tendon action (flexor, extensor, other), which is a component of codes for acquired conditions and injuries affecting the muscles and tendonsPlaceholder X. This icon alerts the coder to an important ICD-10-CM convention-the use of a “placeholder X” for three-, four- and five-character codes requiring a seventh character extension.