The 2026 ICD-10-CM Professional for Physicians, with our hallmark features and format, makes facing the challenge of accurate diagnosis coding easier. Developed specifically to meet the needs of physicians, the Optum codebook contains the complete ICD-10-CM code set, which is the cornerstone for establishing medical necessity, determining coverage, and ensuring appropriate reimbursement. Also included are the 2026 ICD-10-CM Official Guidelines for Coding and Reporting, with chapterspecific guidelines and examples in the tabular section. The familiar Optum symbols identify codes associated with CMS quality payment program (QPP) measures and CMS hierarchical condition categories (HCC) used in risk adjustment (RA) coding and more.
