Osteot dsc ant 1 vrt sgm crv
CPT 22220 covers a surgical procedure where a surgeon cuts and reshapes a vertebra (spinal bone) from the front of the spine to correct deformities like scoliosis or kyphosis in one spinal segment, typically in the thoracic or lumbar regions.
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
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
NCCI bundling edits
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Billing tips
Document the specific vertebral level(s) involved with precise anatomical identification in the operative report, as 22220 covers one vertebral segment only
Impact: Prevents denials for level discrepancies; improper level documentation causes 35-40% of initial denials for this code family
When multiple levels are treated, bill 22220 for the first level and use add-on code 22226 for each additional cervical or thoracic level
Impact: 22226 adds $1,200+ per additional level; failing to use add-on codes results in underbilling by $1,200-$3,600 for multi-level cases
Submit modifier 22 claims with detailed operative note, cover letter explaining unusual circumstances, and quantified comparison of actual vs. typical operative time
Impact: Properly documented modifier 22 claims yield $321-$482 additional reimbursement; undocumented claims have 80% denial rate
Verify anterior approach is documented clearly, as posterior approach osteotomies use different code series (22206-22208) with different reimbursement rates
Impact: Miscoding anterior vs. posterior approach triggers audits and can result in $400-$600 payment differential requiring refunds
Bill instrumentation separately using codes 22840-22844 and 22853-22854 when spinal hardware is placed during the same operative session
Impact: Instrumentation codes add $800-$2,400 to total case reimbursement; bundling these into 22220 results in significant underpayment
Ensure medical necessity documentation includes failed conservative treatment, radiographic evidence of deformity with Cobb angles, and functional impairment assessment
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