What does the "+" sign signify in coding?

The "+" sign in coding specifically denotes an add-on code that applies to the primary procedure. In medical coding, add-on codes are used to indicate additional procedures that are performed in conjunction with a primary service. This signifies that the additional service is typically necessary and enhances the primary service being billed.

For instance, if a physician performs a complex surgical procedure and also performs additional work that is directly related to that surgery, the coding guidelines would allow the use of an add-on code to capture this more comprehensive level of service provided, which ultimately supports proper reimbursement and highlights the complexity of the care delivered.

This coding approach helps ensure that all necessary components of the service are accurately documented and billed, facilitating better communication between healthcare providers and payers regarding the scope and extent of care provided to patients.