In simple words: This code is used when a doctor performs a procedure in the area between your lungs (mediastinum) that doesn't have its own specific code.

This code is used to report procedures performed on the mediastinum that do not have a specific CPT code.

Example 1: A surgeon performs a complex biopsy of a mass located in the mediastinum that cannot be classified using existing CPT codes. Due to the unique nature of the procedure, code 39499 is reported., A patient undergoes a minimally invasive robotic surgery for removal of a cyst in the mediastinum. Since this specific robotic approach is not described by a dedicated code, the surgeon uses 39499., Following a traumatic injury, a patient requires reconstructive surgery of the mediastinal structures.Because the specific combination of repairs is not covered by other codes, 39499 is reported.

A detailed operative report describing the procedure performed.Supporting documentation justifying the medical necessity of the procedure.Documentation of the procedure's complexity and why a specific code is not applicable.

** Always check for new or revised CPT codes before using 39499, as a more specific code may have been introduced.