Ask Dr. Z

Is there a CPT code(s) for CT localization with methylene blue at T9-T10? A neurosurgeon is to perform a T9-T10 laminectomy with decompression and requested my provider do a CT marking with methylene blue. The report states: "Using intermittent CT fluoroscopy for guidance, a 22 gauge, 3.5 inch spinal needle was introduced into the soft tissue of the back and progressively advanced up to the posterior aspect of the T9-T10 posterior elements. Repeat CT imaging of thoracic and lumbosacral spine was obtained to verify correct needle position at the T9-T10 level. I then injected approximately 1 mL of methylene blue through the spinal needle at the T9-T10 level. The needle was removed."