Sydra is an AI-powered platform for the No Surprises Act (NSA) Independent Dispute Resolution (IDR) process. It automates eligibility screening, evidence packaging, offer preparation, submission, and deadline tracking so providers, contingency firms, and RCM companies recover fair out-of-network payments.

Healthcare providers and provider groups, contingency firms pursuing out-of-network disputes, and revenue cycle management (RCM) companies that add NSA IDR to their services.

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Both. Sydra offers full-service filing (we file for you), self-service (your team files with the software), or staff training. You can switch models at any time.

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Federal IDR by specialty

Interventional pain: out-of-network denials and recovery

Epidural injections, facet procedures, radiofrequency ablation, and sacroiliac codes that interventional pain practices take through dispute resolution.

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26 disputed interventional pain codes

Cervical or thoracic epidural injection with imaging

CPT 62321 · cervical/thoracic spine

Lumbar or sacral epidural injection with imaging

CPT 62323 · lumbar/sacral spine

Transforaminal epidural injection, lumbar, single level

CPT 64483 · lumbar spine

Transforaminal epidural injection, lumbar, each additional level

CPT 64484 · add-on · lumbar spine

Facet joint injection, cervical or thoracic, single level

CPT 64490 · cervical/thoracic spine

Facet joint injection, lumbar or sacral, single level

CPT 64493 · lumbar/sacral spine

Facet joint radiofrequency ablation, cervical or thoracic, single

CPT 64633 · cervical/thoracic spine

Facet joint radiofrequency ablation, lumbar or sacral, single

CPT 64635 · lumbar/sacral spine

Facet joint radiofrequency ablation, each additional level

CPT 64636 · add-on · spine

Transforaminal epidural injection, cervical, single level

CPT 64479 · cervical spine

Transforaminal epidural injection, cervical, each additional level

CPT 64480 · add-on · cervical spine

Facet joint injection, cervical, second level

CPT 64491 · add-on · cervical/thoracic spine

Facet joint injection, lumbar, second level

CPT 64494 · add-on · lumbar/sacral spine

Facet radiofrequency ablation, cervical, each additional

CPT 64634 · add-on · cervical/thoracic spine

Sacroiliac joint injection with imaging

CPT 27096 · sacroiliac joint

Injection of nerves of the sacroiliac joint

CPT 64451 · sacroiliac joint

Radiofrequency ablation of sacroiliac joint nerves

CPT 64625 · sacroiliac joint

Minimally invasive sacroiliac joint fusion

CPT 27279 · sacroiliac joint

Intrathecal pump catheter implantation

CPT 62350 · spine

Implantation of intrathecal infusion pump

CPT 62362 · spine

Removal of spinal neurostimulator electrode, percutaneous

CPT 63661 · spine

Sacroiliac joint injection, facility add-on

HCPCS G0260 · sacroiliac joint

Lumbar epidural injection without imaging

CPT 62322 · lumbar spine

Cervical epidural injection without imaging

CPT 62320 · cervical spine

Open sacroiliac joint fusion

CPT 27280 · sacroiliac joint

Neurolytic celiac plexus block

CPT 64681 · abdomen

Medically & clinically reviewed by Dr. John M. Abrahams, MD

Board-certified neurosurgeon and founder of Sydra · Last reviewed September 2026 · About the author

Sources

Figures reflect the published federal record across all disputes, not a prediction about any individual claim. This is general information, not legal or financial advice.

Interventional pain: out-of-network denials and recovery

26 disputed interventional pain codes

Interventional pain denials by state

Sources