Repair of a Semi-Circular Canal Dehiscence with ENT

Question:

We are doing a combined case with ENT and are not sure how to code it. The patient has a semi-circular canal dehiscence of the temporal bone. ENT is going to do the approach and I’m going to do the repair of the defect with local bone. We will use mesh to reconstruct the cranial defect for closure. How do we code this procedure?

Answer:

It is difficult to provide exact CPT codes unless we see an operative note. That said, there is not a code for this exact procedure. An unlisted code will likely be necessary. Another thought is to use the exploratory craniotomy code, 61304, with modifier 62 (two surgeons).

*This response is based on the best information available as of 5/28/20.