The Certified Outpatient Coder (COC™) Exam Review is an online course designed to prepare you for the COC Certification Exam offered by AAPC. The COC coding certification demonstrates proficiency in assigning accurate ICD-10-CM, CPT® and HCPCS Level II codes for diagnoses, procedures and services performed in the hospital outpatient setting. Join our waitlist to be alerted when the 2022 version is available.