CPT 22836Surgery

Ant thrc vrt body tethrg <7

CPT 22836 represents anterior thoracic vertebral body tethering involving fewer than 7 segments, a surgical procedure used to correct spinal curvature by placing a flexible cord along the front of the spine to guide growth. This is primarily performed in pediatric patients with progressive scoliosis.

Showing rates for

National Average

Base Medicare rate

$1,665.52

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

PE RVU (NF)

16.26

MP RVU

3.23

Total RVU

51.49

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Document the exact number of vertebral segments tethered (must be <7 for 22836; use 22837 for 7+ segments)
Impact: Incorrect code selection can result in $500-1000+ payment variance and potential upcoding audits
Report thoracoscopic approach separately with appropriate code 32668 or 32601 as these are not bundled in the base tethering code
Impact: Additional reimbursement of $400-800 when properly documented and coded with modifier 51
Verify pre-authorization requirements as many payers still consider VBT investigational or require specific age/curve criteria
Impact: Prevents 100% claim denial; prior authorization approval secures coverage for $30,000-50,000 total procedure cost
Use modifier 62 when thoracic surgeon performs anterior approach and spine surgeon performs tethering, documenting each surgeon's distinct role
Impact: Allows both surgeons to bill and receive 62.5% reimbursement each ($1040.95 per surgeon) instead of assistant rate
Document medical necessity including failed conservative treatment (bracing), growth potential metrics (Risser stage, Sanders score), and curve progression rates
Impact: Reduces denial rate by 60-70% and supports appeals; VBT denials often hinge on medical necessity documentation
Bill same-day preoperative imaging interpretation separately if personally performed and documented by surgeon
Impact: Additional $50-150 for radiograph interpretation (CPT 72082-26) when properly documented as separate service

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 22836 in 2025?

The 2025 Medicare national average reimbursement for CPT 22836 is $1665.52 for both facility and non-facility settings. This rate is based on 51.49 total RVUs (32 work RVU, 16.26 PE RVU, 3.23 MP RVU) multiplied by the 2025 conversion factor of 32.3465. Actual reimbursement may vary by geographic location based on local GPCI adjustments.

How many RVUs is CPT code 22836 worth?

CPT 22836 has a total of 51.49 RVUs for 2025, consisting of 32 work RVUs, 16.26 practice expense RVUs, and 3.23 malpractice RVUs. This relatively high RVU value reflects the complexity and surgical intensity of anterior thoracic vertebral body tethering procedures.

What is the difference between CPT 22836 and 22837?

CPT 22836 is used for anterior thoracic vertebral body tethering of fewer than 7 segments, while CPT 22837 is for 7 or more segments. The exact number of vertebral levels instrumented with the tethering system determines which code to use. Accurate segment counting in the operative report is critical for correct code selection and avoiding audit issues.

Does Medicare cover vertebral body tethering CPT 22836?

Medicare coverage for CPT 22836 varies by region and MAC (Medicare Administrative Contractor), as many jurisdictions have not yet established specific Local Coverage Determinations for vertebral body tethering. Providers should check with their local MAC for coverage policies and may need to submit prior authorization demonstrating medical necessity, appropriate patient selection criteria, and evidence of failed conservative treatment.

Can CPT 22836 be billed with thoracoscopic approach codes?

Yes, thoracoscopic approach codes (such as 32668 or 32601) can typically be billed separately with CPT 22836 as the approach is not bundled into the vertebral body tethering code itself. Use modifier 51 for the secondary procedure and ensure the operative report clearly documents both the approach and the tethering as distinct components of the surgery.

What modifiers are commonly used with CPT 22836?

Common modifiers for CPT 22836 include: modifier 62 for co-surgeons when two specialists perform distinct portions (each receives 62.5% reimbursement), modifier 22 for increased procedural services when substantially greater work is required with detailed documentation, modifier 51 for multiple procedures, and modifier 59 or XU to indicate distinct procedural services when performed with potentially bundled codes.

What documentation is required to bill CPT 22836 without denials?

Essential documentation includes: specific preoperative Cobb angle measurements, skeletal maturity indicators (Risser stage), evidence of failed conservative treatment (6+ months bracing with documented progression), exact vertebral levels and number of segments tethered (must be <7), approach method used, tethering system specifications, and intraoperative imaging confirmation. Medical necessity narrative explaining patient selection criteria and why VBT is appropriate versus fusion is critical for many payers.