All ASC CPT codes
Specialty Procedure Hub · Injections 62320–64999; 20550–20611

Interventional Pain Medicine in the ASC and Office-Based Setting

Interventional pain medicine treats spine, joint, and nerve pain with image-guided injections and ablation rather than open surgery, usually in an ambulatory surgery center or office-based lab with same-day discharge.

Most pain billing falls in two CPT ranges. The 62320 through 64999 block covers spinal and peripheral nerve work, such as transforaminal epidural injection 64483 and facet joint injection 64493. The 20550 through 20611 block covers tendon, ligament, trigger point, and joint injections and aspirations. Whether a procedure is paid in an ASC depends on the CMS addenda: Addendum AA codes sit on the ASC Covered Procedures List, so Medicare pays for them in an ASC, while Addendum EE codes are excluded. Because pain codes are level-specific and unit-sensitive, documentation of laterality, spinal level, and number of levels matters for clean payment.

Interventional Pain Medicine codes(1–60 of 329)

Are interventional pain procedures done in an ASC?

Yes. Many spinal and joint injection and ablation procedures are performed in ambulatory surgery centers under place of service 24, and others are performed in an office-based lab under place of service 11. Whether Medicare pays a specific code in an ASC depends on its CMS addendum status: codes on Addendum AA are on the ASC Covered Procedures List, while Addendum EE codes are excluded from ASC payment and are typically done in another setting.

What CPT codes does interventional pain medicine use?

The specialty centers on two ranges. Codes from 62320 through 64999 cover spinal and peripheral nerve work, such as transforaminal epidural injections (for example 64483), paravertebral facet joint injections (64493 and 64494), and facet nerve destruction (64635). Codes from 20550 through 20611 cover tendon, ligament, trigger point, and major joint injections and aspirations. Our dataset maps 329 ASC-relevant codes to this specialty.

How are spinal level and number of levels billed for facet and epidural injections?

Many pain codes are reported per level and per side, so the number of levels and the laterality drive both code selection and units. For example, 64493 reports a single lumbar or sacral facet joint level while 64494 reports a second level. Accurate documentation of the spinal level, side, and image guidance is needed for clean claims. DataLily's procedure library tracks CPT-specific prior-authorization and documentation requirements to support that detail.

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