ICD-10 stands for International Classification of Diseases, 10th edition. It is a system used by doctors and healthcare workers to put diagnoses, symptoms, and other medical information into categories so that it is easier to find, understand, and share. These categories help doctors to give better medical care. For example, if a patient has a sore throat, the doctor would be able to look up the category containing different types of sore throats to better understand and treat the patient.