Final answer:
The classification system described in the question is the Diagnosis-Related Group (DRG) system used for reimbursement in the hospital outpatient setting.
Step-by-step explanation:
The classification system described in the question is the Diagnosis-Related Group (DRG) system used for reimbursement in the hospital outpatient setting. This system involves the use of various codes including the International Classification of Diseases, Clinical Modification (ICD-10-CM) codes for diagnoses, Current Procedural Terminology (CPT) evaluation and management codes, and procedure codes. These codes, along with additional information such as age, sex, and visit disposition, are used to classify patients and determine reimbursement for the healthcare provided in the hospital outpatient setting.