The ICD-10-CM Expert for Physicians with 2021 Guidelines, with our hallmark features and format makes facing the challenge of accurate diagnosis coding easier. Developed specifically to meet the needs of physicians, the Optum360 codebook contains the complete ICD-10-CM code set which is the cornerstone for establishing medical necessity, determining coverage, and ensuring appropriate reimbursement. Symbols in the tabular section identify codes associated with CMS quality payment program (QPP) measures and CMS hierarchical condition categories (HCC) used in risk adjustment (RA) coding. Supplementary appendixes available only in the expert edition include: pharmacology listings, Z codes for long-term use of drugs and associated drug names; and Z codes used only as primary diagnosis. Spiral bound.