Billing Code Books: ICD Books, CPT Books, HCPCS – What Are They? System Billing Code Books: ICD Books, CPT Books, HCPCS – What Are They? Royce C. Clem January 8, 2023 Medical Billing Code books are a necessary part of medical insurance billing. You will find that you... Read More Read more about Billing Code Books: ICD Books, CPT Books, HCPCS – What Are They?