How must add-on codes be reported in relation to their associated codes?

Add-on codes are specifically designed to be reported in conjunction with their associated codes. They provide additional information about a service that supplements the primary procedure that is being performed. When reporting an add-on code, it is essential to list the primary code first, followed by the add-on code(s). This sequencing is critical as it clarifies the relationship between the primary procedure and the additional work or services reflected by the add-on code, ensuring accurate billing and proper reimbursement.

Reporting the associated add-on code this way allows payers to understand the full scope of the services provided. It also ensures compliance with coding guidelines established by the American Medical Association and other coding organizations. By placing the primary code first, coders maintain the integrity of the coding structure and facilitate communication of the service details to insurance providers.