The CPC Preparation course teaches physician office coding, such as how to assign the proper diagnosis and procedure codes from operative reports and patient charts. This course also helps to prepare you for the CPC certification exam. The CPB Medical Billing course emphasizes billing and only lightly touches on coding, and will prepare you for the CPB certification exam. This course teaches medical billing and reimbursement issues, such as how to take the codes that have already been assigned by the coder and process a claim form, and how to work with 3rd party payers to make sure the claim is processed correctly. It is important that a coder understands billing issues as it helps to decrease claim denials and increase reimbursement. An understanding of billing will also expand a coder’s career opportunities.