CPT 22837Surgery

Ant thrc vrt body tethrg 8+

CPT code 22837 covers the surgical procedure of anterior thoracic vertebral body tethering involving 8 or more vertebral segments. This is a specialized spinal procedure used primarily for treating progressive scoliosis in growing children and adolescents.

Showing rates for

National Average

Base Medicare rate

$1,835.34

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

35.5

PE RVU (NF)

17.63

MP RVU

3.61

Total RVU

56.74

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

NCCI bundling edits

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Billing tips

Always document the exact number of vertebral segments instrumented (must be 8 or more for 22837). If fewer segments, use 22836 (4-7 segments) to avoid automatic denial.
Impact: Incorrect segment count can result in $500-800 downcoding or complete denial requiring time-consuming appeals
Bill separately for the thoracoscopic approach if performed using code 21743. These codes are not bundled and represent distinct work components.
Impact: Capturing the approach code can add $1,200-1,800 to total case reimbursement when appropriately documented
Document operative time, blood loss, anesthesia time, and any complications or unusual difficulties to support modifier 22 claims when applicable.
Impact: Successful modifier 22 claims can increase reimbursement by $367-917 (20-50% above base rate) for complex cases
Ensure operative report clearly distinguishes vertebral body tethering from traditional fusion procedures, as payers may confuse these distinct techniques.
Impact: Clear documentation prevents medical necessity denials and reduces review delays that can extend payment cycles by 30-60 days
Verify prior authorization requirements with commercial payers, as VBT is newer and may have specific coverage criteria or be deemed investigational by some plans.
Impact: Obtaining prior auth prevents denials that can delay payment 90+ days and reduces write-offs averaging $15,000-25,000 per case
When billing with modifier 62 for co-surgeons, ensure both operative reports clearly document each surgeon's distinct role and contribution to avoid split payment denials.

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 22837 in 2025?

The 2025 Medicare national average reimbursement for CPT 22837 is $1,835.34 for both facility and non-facility settings. This rate is based on a total RVU of 56.74 multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary based on geographic adjustments (GPCI) and local MAC policies.

How many vertebral segments are required to bill CPT 22837?

CPT 22837 requires instrumentation of 8 or more vertebral segments with anterior thoracic vertebral body tethering. If fewer segments are instrumented (4-7 segments), you must use CPT 22836 instead. The operative report must clearly document each specific vertebral level instrumented to support the segment count.

Can I bill CPT 22837 with the thoracoscopic approach code 21743?

Yes, CPT 21743 (thoracoscopic approach) is separately billable with 22837 and is not subject to CCI bundling edits. The thoracoscopic approach represents distinct work from the vertebral body tethering instrumentation. Both procedures should be documented separately in the operative report with distinct descriptions of the work performed for each.

What is the work RVU value for CPT 22837?

The work RVU for CPT 22837 is 35.5, which reflects the high level of physician work, skill, and intensity required for this complex multi-level spinal procedure. The total RVU is 56.74, including practice expense (17.63) and malpractice (3.61) components.

Do commercial insurance plans cover vertebral body tethering CPT 22837?

Coverage varies significantly by payer. Some commercial plans cover VBT as an established treatment for adolescent scoliosis, while others consider it experimental or investigational and deny coverage. Always obtain prior authorization before surgery, submit peer-reviewed literature with the authorization request, and verify the specific payer's medical policy for scoliosis treatment and VBT coverage criteria.

What modifier should I use when two surgeons perform CPT 22837 together?

Use modifier 62 when two surgeons of different specialties work as co-surgeons on the vertebral body tethering procedure. Each surgeon bills 22837 with modifier 62 and receives 62.5% of the allowable amount ($1,147.09 each). Both operative reports must clearly document each surgeon's distinct role and contribution to the procedure to avoid payment denials.

What is the difference between CPT 22837 and 22836 for vertebral body tethering?

The only difference is the number of vertebral segments instrumented. CPT 22836 covers 4-7 segments, while CPT 22837 covers 8 or more segments. The segment count must be clearly documented in the operative report with specific vertebral levels identified (e.g., T5-T12 for 8 segments). Billing the wrong code based on incorrect segment counting is a common cause of denials and downcoding.