The International Classification of Diseases (ICD) is the globally authoritative medical classification and terminology used in epidemiology, health management, clinical diagnosis, and health information management, resource allocation, clinican recording, decision support and health financing. ICD10Data.com is a free reference website designed for the fast lookup of all current American ICD-10-CM (diagnosis) and ICD-10-PCS (procedure) medical billing codes. Use Codify by AAPC for ICD-10 code lookup, medical coding reference, online ICD-10-CM codes search, Diagnosis Codes guidelines, lay terms and many more. Stay up to date on ICD-10! Sign up for email updates. On October 1, 2015, the health care industry transitioned from ICD-9 to ICD-10 codes for diagnoses and inpatient procedures. Use ICD-10 to code services provided on or after October 1, 2015. ICD serves a broad range of uses globally and provides critical knowledge on the extent, causes and consequences of human disease and death worldwide via data that is reported and coded with the ICD. An implantable cardioverter-defibrillator, also called an ICD, is a small battery-powered device placed in the chest. It detects and stops irregular heartbeats, also called arrhythmias. An ICD constantly checks the heartbeat. It delivers electric shocks, when needed, to restore a regular heartbeat. ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized system used to code diseases and medical conditions (morbidity) data. ICD-10-CM — Diagnosis Codes The 2025 ICD-10-CM Tabular List is a structured list of diagnosis codes divided into 22 chapters, each containing sections, categories, and codes based on body system or condition. What is an implantable cardioverter defibrillator? An ICD is a battery-powered device placed under the skin that keeps track of your heart rate. Thin wires connect the ICD to your heart. If an abnormal heart rhythm is detected, the device will deliver an electric shock to restore a normal heartbeat. Search the current list of American ICD-10-CM diagnosis codes with our free lookup tools. Find codes by name, descriptions or clinical terms.