Diagnostic Ultrasound Followed by Ultrasound Guided Injection

Question:

We have a Pain Interventionalist performing diagnostic MSK ultrasounds, followed by an ultrasound guided injection. We bill both codes but the claims keep bundling. Is there a way to avoid this?

Answer:

Thank you so much for reaching out with your question. Based on your question, KZA is happy to share the general guidelines for Ultrasound billing with you. An ultrasound-guided injection, for example CPT 20611 Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); with ultrasound guidance, with permanent recording and reporting, involves a focused ultrasound assessment. This includes capturing, labeling, and interpreting images from different angles around the affected area. The goal is to find the best approach for the injection, while noting normal anatomy and any signs of issues. Imaging helps guide the needle safely into the joint or bursa, avoiding bones, blood vessels, and other sensitive structures. Afterward, the findings are carefully documented in the patient’s chart to keep everyone informed. If a diagnostic ultrasound is performed at the same location, it’s included as part of the ultrasound-guided procedure.  

If a diagnostic ultrasound is performed at the separate anatomic location, a modifier 59 or X{ESPU} modifier may be appropriate. Please know that this will be under high scrutiny with the payors. 

KZA has free KZA KAST podcasts on both modifier 59 and the subset X {ESPU} for additional information on the appropriate application of these modifiers. 

Modifier 59 - Part 1

https://monday.transistor.fm/episodes/modifier-59-part-1

Subset Modifier XE

https://monday.transistor.fm/episodes/subset-modifier-xe

*This response is based on the best information available as of 07/09/26.