Radiology Coding Alert

Question: Do you have to use -51 modifier every time you code a visit where the radiologist performs multiple procedures?

Hawaii Subscriber

Answer: No. There is a complete list of modifier -51 (Multiple procedures) exempt codes in Appendix E of CPT 2004. The list is "a summary of CPT codes that are exempt from the use of modifier -51 but have not been designated as CPT add-on procedures/services," according to CPT 2004.

These mod -51 exempt codes are also recognizable within the code listings of CPT. Just look for a "circle with a slash" symbol to the left of the code. Get to know them before filing modifier -51 claims to prevent red tape and increase your practice's productivity.

For example, look up arterial catheterization code 36620 (Arterial catheterization or cannulation for sampling, monitoring or transfusion [separate procedure]; percutaneous) and you'll notice the "circle with a slash" symbol to its left. That means that when the radiologist performs the catheterization in addition to another procedure, coders should report 36620 without a modifier in addition to any other procedures performed.