We use privacy-friendly analytics — Plausible (cookieless) and Microsoft Clarity, which uses cookies for anonymized heatmaps and session insights — plus advertising tags (LinkedIn Insight Tag and Google Ads) to measure our advertising and show relevant Sydra ads. We never sell your data. See our Cookie Policy and Privacy Policy.
Federal IDR · Code overview
Out of network Transforaminal lumbar interbody fusion (TLIF), single level, CPT 22633
The denial, the code, and the path to recovery.
Out of network Transforaminal lumbar interbody fusion (TLIF), single level (CPT 22633) is routinely paid below the billed charge or denied outright. Most practices treat what arrives as the amount owed. Under the No Surprises Act it is an opening offer, and federal independent dispute resolution exists to contest it. We prepare the submission, and we can file it for you.
- Code
- CPT 22633
- Body region
- lumbar spine
- Typical setting
- hospital
Combined posterior and interbody lumbar fusion at one level through a transforaminal approach.
What the federal record shows for CPT 22633
Source: CMS Federal IDR Public Use Files, calendar 2025. Figures describe the published federal record across all disputes for this code — not a prediction about any individual claim.
Why Transforaminal lumbar interbody fusion (TLIF), single level gets paid short out of network
Anchored to the qualifying payment amount (QPA)
The plan pays Transforaminal lumbar interbody fusion (TLIF), single level at its own qualifying payment amount — its median in-network rate for the area — and treats that as the answer. Under the No Surprises Act the QPA is the plan's opening anchor, not a cap, and certified IDR entities weigh several other factors against it.
Out-of-network reduction with no contract on file
With no negotiated rate for Transforaminal lumbar interbody fusion (TLIF), single level (CPT 22633), the allowed amount is reduced to an out-of-network schedule that rarely reflects what the lumbar spine procedure actually involves in a hospital setting.
Down-coding or documentation holds
Transforaminal lumbar interbody fusion (TLIF), single level claims are frequently held or down-coded pending operative notes, then paid short once submitted — a gap federal IDR is designed to contest with the right clinical record attached.
The federal pathway to recovery
There is a defined federal pathway between a payer's underpayment and a binding arbitrated amount: an open negotiation window, an eligibility determination, a batching decision, then arbitration. Each step has a hard deadline, and missing one forfeits the claim. Sydra screens eligibility, assembles the evidence and offer, files, and tracks every deadline so a Transforaminal lumbar interbody fusion (TLIF), single level claim never lapses by default.
Providers won 88% of the 934 CPT 22633 line items decided in 2025. Sydra is a capped, predictable fee — less than half of what most contingency firms charge. We file it, you keep the recovery.
Transforaminal lumbar interbody fusion (TLIF), single level (CPT 22633) — common questions
Can out-of-network Transforaminal lumbar interbody fusion (TLIF), single level (CPT 22633) claims go through federal IDR?
Yes. If the item or service qualifies under the No Surprises Act and open negotiation has passed without resolution, either party can initiate independent dispute resolution to contest the payment on CPT 22633.
Why is Transforaminal lumbar interbody fusion (TLIF), single level underpaid out of network?
One of the most disputed spine codes; large QPA-to-award spread in surgical IDR data. Insurers anchor to the qualifying payment amount and apply out-of-network reductions, which is exactly what federal IDR exists to contest.
What does Sydra do with a Transforaminal lumbar interbody fusion (TLIF), single level denial?
Sydra checks whether the Transforaminal lumbar interbody fusion (TLIF), single level claim qualifies, assembles a compliant IDR submission with the supporting evidence and your offer, tracks every deadline, and can file it for you — for a monthly platform fee plus a small share of net recovery, capped per claim and billed only on disputes that win.
Related codes
Browse all Spine surgery codes, or return to the Federal IDR hub.
CPT 22633 by state
Routing and deadlines change at the state line, even for the same code and payer.
Transforaminal lumbar interbody fusion (TLIF), single level denials by state
No outcome is guaranteed. Results vary by claim, payer, specialty, and documentation. Any general figures reflect the published federal record across all disputes, not a prediction about your claim. This is general information, not legal or financial advice.
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.