Radiofrequency Ablation

Question:

We have been reporting CPT code 64625 with 3 units when we perform a radiofrequency ablation of the nerves innervating the sacroiliac joint at levels S1. S2, and S3. We have gotten several payer denials recently. Are we coding correctly?

Answer:

No, CPT code 64625, Radiofrequency ablation, nerves innervating the sacroiliac joint, with image guidance (i.e., fluoroscopy or computed tomography), is reported only once per side for the entire joint. You cannot report CPT code 64625 multiple times on the same side. However, you may report Modifier 50 if performing the procedure bilaterally.