Interlaminar vs. Transforaminal Injections

Question:

If my physician does an interlaminar epidural steroid injection with imaging, should I be coding this as a 62321 or 62323? I know the guidelines state if a Transforaminal is done at that level to code as a 64479, but it doesn't state specifically for the interlaminar approach.

Answer:

Ensuring you select the correct injection CPT code is vitally important.

An interlaminar epidural steroid injection, whether performed for diagnostic or therapeutic purposes, is coded to either CPT 62321 or 62323, depending on the anatomic area.

Please note that CPT 62321 is for a cervical or thoracic injection, and CPT 62323 is for a lumbar or sacral (caudal) injection. Both CPT codes include needle or catheter placement with imaging guidance (i.e., fluoroscopy or CT). They do not include neurolytic substances. A transforaminal is coded by CPT 64479.

*This response is based on the best information available as of 08/27/26.