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.

Do you file disputes for us, or is it self-service?

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.

How much does Sydra cost?

Sydra is a flat, predictable fee — less than half of what most contingency firms charge (which typically take 20% or more of every recovery, indefinitely) — or you can license the software and run it yourself.

Is Sydra HIPAA compliant?

Yes. Protected health information is handled under a Business Associate Agreement (BAA).

We use privacy-friendly, cookieless analytics (Plausible) plus one first-party cookie for anonymous visit counting — no advertising and no cross-site tracking. See our Cookie Policy and Privacy Policy.

Federal IDR by specialty

Spine surgery: out-of-network denials and recovery

Cervical and lumbar fusion, decompression, instrumentation, and neurostimulation codes that surgical billing teams dispute most often under the No Surprises Act.

Free claim review →

52 disputed spine surgery codes

Anterior cervical discectomy and fusion, single level

CPT 22551 · cervical spine

Anterior cervical fusion, each additional level

CPT 22552 · add-on · cervical spine

Posterior lumbar fusion, single level

CPT 22612 · lumbar spine

Posterior lumbar interbody fusion (PLIF), single level

CPT 22630 · lumbar spine

Transforaminal lumbar interbody fusion (TLIF), single level

CPT 22633 · lumbar spine

TLIF, each additional level

CPT 22634 · add-on · lumbar spine

Posterior spinal instrumentation, 3 to 6 segments

CPT 22842 · add-on · spine

Anterior spinal instrumentation, 2 to 3 segments

CPT 22845 · add-on · spine

Interbody device insertion with integral anterior instrumentation

CPT 22853 · add-on · spine

Interbody device insertion into corpectomy defect

CPT 22854 · add-on · spine

Posterior spinal fusion, each additional level

CPT 22614 · add-on · spine

Lumbar discectomy / laminotomy, single interspace

CPT 63030 · lumbar spine

Lumbar discectomy, each additional interspace

CPT 63035 · add-on · lumbar spine

Repeat lumbar discectomy, single interspace

CPT 63042 · lumbar spine

Cervical laminectomy with foraminotomy, single segment

CPT 63045 · cervical spine

Lumbar laminectomy with foraminotomy, single segment

CPT 63047 · lumbar spine

Laminectomy with foraminotomy, each additional segment

CPT 63048 · add-on · spine

Transpedicular lumbar decompression, single segment

CPT 63056 · lumbar spine

Anterior cervical discectomy without fusion, single interspace

CPT 63075 · cervical spine

Spinal cord stimulator electrode placement, percutaneous

CPT 63650 · spine

Spinal cord stimulator electrode placement, laminectomy

CPT 63655 · spine

Spinal cord stimulator generator insertion

CPT 63685 · spine

Anterior lumbar interbody fusion (ALIF), single level

CPT 22558 · lumbar spine

Anterior interbody fusion, each additional level

CPT 22585 · add-on · spine

Posterior cervical fusion, single level

CPT 22600 · cervical spine

Posterior thoracic fusion, single level

CPT 22610 · thoracic spine

Posterior interbody fusion, each additional level

CPT 22632 · add-on · lumbar spine

Posterior fusion for spinal deformity, up to 6 segments

CPT 22800 · spine

Posterior fusion for spinal deformity, 7 to 12 segments

CPT 22802 · spine

Posterior nonsegmental spinal instrumentation

CPT 22840 · add-on · spine

Posterior segmental instrumentation, 7 to 12 segments

CPT 22843 · add-on · spine

Reinsertion of spinal fixation device

CPT 22849 · spine

Cervical artificial disc replacement, single level

CPT 22856 · cervical spine

Revision cervical artificial disc, single level

CPT 22861 · cervical spine

Revision lumbar artificial disc, single level

CPT 22862 · lumbar spine

Cervical laminectomy for stenosis, 1 to 2 segments

CPT 63001 · cervical spine

Lumbar laminectomy for stenosis, 1 to 2 segments

CPT 63005 · lumbar spine

Cervical laminectomy for stenosis, more than 2 segments

CPT 63015 · cervical spine

Lumbar laminectomy for stenosis, more than 2 segments

CPT 63017 · lumbar spine

Cervical discectomy from the back, single interspace

CPT 63020 · cervical spine

Anterior cervical corpectomy, single segment

CPT 63081 · cervical spine

Anterior cervical corpectomy, each additional segment

CPT 63082 · add-on · cervical spine

Anterior lumbar corpectomy, single segment

CPT 63090 · lumbar spine

Vertebroplasty, lumbosacral

CPT 22511 · lumbosacral spine

Kyphoplasty, lumbar

CPT 22514 · lumbar spine

Lumbar laminectomy for excision of intraspinal lesion

CPT 63267 · lumbar spine

Cervical laminoplasty, 2 or more segments

CPT 63050 · cervical spine

Thoracic transpedicular decompression, single segment

CPT 63055 · thoracic spine

Thoracic costovertebral decompression, single segment

CPT 63064 · thoracic spine

Removal of posterior segmental instrumentation

CPT 22852 · spine

Endoscopic lumbar decompression, single interspace

CPT 62380 · lumbar spine

Revision of spinal neurostimulator electrode plate

CPT 63662 · spine

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.

Spine surgery: out-of-network denials and recovery

52 disputed spine surgery codes

Spine surgery denials by state

Sources