Free CCS® Prep Course (This Course has Ended) Home » Courses » Free CCS® Prep Course (This Course has Ended) » Page 5 Required Texts: Hospital ICD-10-CM (Optum 360 preferred) ICD-10-PC (Optum 360 preferred) AMA CPT Professional HCPCS Level II (optional, but highly recommended) AMCI MCG Manual Buck’s Coding Exam Review (optional) AHIMA – CCS® Prep (Current Edition) ICD-10-CM and PCS Coding Handbook (Nellie Chiesen) Previous Ready To Enroll