2026 ICD-10-CM (CMS) 2026 ICD-10-CM files These files include updates for FY 2026. Use these codes for discharges occurring from April 1, 2026 – September 30, 2026, and for patient encounters occurring from April 1, 2026– September 30, 2026. April 1, 2026 Code Descriptions in Tabular Order (ZIP) April 1, 2026 Addendum (ZIP) April 1, […]