All ASC CPT codes
Specialty Hub · Pain 62320–64999

Interventional Pain Medicine in the ASC and Outpatient Setting

Interventional pain medicine physicians, many of them internists by training, treat chronic spine and joint pain with image-guided injections and ablation procedures, often in an ASC with same-day discharge. In our dataset this specialty maps to 318 ASC-relevant CPT codes, most in the pain procedure range 62320 to 64999, such as 64483 (a single-level lumbar or sacral transforaminal epidural injection) and 64635 (destruction of a lumbar or sacral facet joint nerve).

For ASC work, what matters is whether a code is ASC-eligible, and therefore can be performed in an ASC, or not typically performed in that setting. Knowing where each pain code lands, and the prior-authorization and documentation rules attached to it, is the difference between a clean claim and a denial.

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Internal Medicine – Pain Medicine codes(1–60 of 318)

Are pain management procedures performed in an ambulatory surgery center?

Yes, many are. Image-guided injections and radiofrequency ablation are commonly done in ASCs and office-based labs because they are short, same-day procedures. Whether a specific code suits the ASC setting depends on its ASC-eligibility status, worth confirming before scheduling. Some codes are ASC-eligible and can be performed in a certified ambulatory surgery center, while others are typically done in a hospital outpatient department or office instead. Some pain procedures are also routinely performed in the office under place of service 11.

What CPT codes does interventional pain medicine use?

Most fall in the pain procedure range 62320 to 64999. Common families include interlaminar epidural injections such as 62320, transforaminal epidural injections such as 64483, paravertebral facet joint injections such as 64493, and facet joint nerve destruction by radiofrequency ablation such as 64635. The exact code depends on the spinal region treated, the number of levels, and whether the service is diagnostic or therapeutic.

What is the difference between a facet joint injection and radiofrequency ablation in billing terms?

A facet joint injection, such as 64493 in the lumbar or sacral region, places medication in or around the joint and is often used both diagnostically and therapeutically. Radiofrequency ablation, such as 64635, destroys the nerve that supplies the joint to provide longer lasting relief. They are separate code families with their own level-based add-on codes, and payers frequently require documentation of prior diagnostic blocks before approving ablation.

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