What is the primary purpose of modifiers in CPT coding?

The primary purpose of modifiers in CPT coding is to provide context about the service rendered. Modifiers are two-digit codes that can be appended to the standard CPT codes to convey additional information about the procedure performed. For example, they might indicate that a procedure was altered in some way without changing its definition or code. This context can include factors such as whether a procedure was bilateral, whether it was performed more than once, or if there were unusual circumstances that affected the delivery of the service.

Using modifiers helps ensure that the payer understands the specifics of the service rendered, which can affect the reimbursement process. By accurately conveying the nuances of the services provided, modifiers play a crucial role in maintaining the integrity of the billing and coding process, ensuring that medical claims are processed accurately and efficiently.