September 2, 2021

Question:
My doctor did a regional thoracic nerve block. He performed three injections at three intercostals levels. How do I code that?

Answer:
You would report 64420 (Injection, agent (s) and /or steroid, intercostal nerve, single level) and 64421 x 2 for the two additional level. Each additional level is reported with the add on code 64421.

*This response is based on the best information available as of 09/02/21