Can a modifier be used on any CPT code?

In the context of CPT codes, modifiers serve to provide additional information about the service performed without altering the main definition of the code. While many CPT codes can indeed accept modifiers, there are specific guidelines that indicate which codes qualify for modification.

Modifiers are not universally applicable across all CPT codes; there are certain codes that are designated to accept modifiers based on the situation, such as bilateral procedures, multiple procedures, or alterations in service (e.g., when a procedure is distinct from another service performed on the same day). Some codes inherently do not require or allow any modifiers, making it crucial for medical coders and billing professionals to be familiar with which codes are modifiable.

As a result, the statement that modifications can only be used on codes that explicitly allow them is accurate. This ensures proper billing and compliance with coding guidelines, ultimately facilitating correct reimbursement and avoiding denials.