Ask Dr. Z

An IR doctor has asked me if we can bill for measuring interstitial pressure with a device. They will be doing a biopsy of a tumor, and the plan is to place a needle to measure pressures in a tumor. A component of the tumor pressure is transmitted arterial pressures. The plan is to simultaneously measure the pressures when the biopsy is done. What code(s) can be billed for this (in addition to the biopsy/guidance for biopsy)? I would appreciate any recommendations you may have for billing this additional procedure.