What does modifier -J indicate?

Modifier -J is correctly associated with the indication for the use of unlisted procedures and services. This means that when a provider utilizes a service or procedure that does not have a specific CPT code assigned to it, they can attach modifier -J to indicate that the procedure performed is unlisted. This is particularly important for billing and coding purposes, as it signals to payers that the service falls outside the normal categories defined by current CPT codes.

When a service is reported as unlisted, the provider must typically provide detailed documentation to support the necessity and nature of the procedure to receive reimbursement appropriately. This ensures clarity in medical billing and helps to prevent misunderstandings about the services provided.

In contrast, the other options do not align with the function of modifier -J. For instance, modifiers indicating a preventive service, distinguishing parts of a procedure, or signifying bundled services have distinct identifiers and purposes that clearly differentiate them from the unlisted designation that modifier -J represents.