Reconstruction of jaw
CPT code 21245 covers surgical reconstruction of the jaw, which may involve bone grafting, reshaping, or repositioning to restore jaw function and structure after trauma, cancer, congenital defects, or severe degeneration.
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 complexity factors including extent of bone loss, number of segments involved, use of grafting materials (autogenous vs. alloplastic), and any microvascular techniques
Impact: Supports modifier 22 claims for additional reimbursement of 20-50% ($236-$590 additional) and reduces denial risk
Separately report bone graft harvesting procedures (20900-20902 series) when autogenous grafts are obtained from distant sites
Impact: Additional $300-$800 depending on harvest site and technique; commonly overlooked revenue opportunity
Verify facility vs. non-facility status before billing; the $259.74 difference between settings significantly affects revenue expectations
Impact: Ensures accurate payment posting and reduces adjustment reconciliation; prevents $259.74 underpayment errors
Appeal initial denials for medical necessity with detailed operative notes, pre-operative imaging, and photos demonstrating extent of deformity or injury
Impact: Increases approval rate from approximately 40% to 75-85% on appeal, recovering $1180.32 per successful overturn
For tumor-related reconstruction, ensure oncologic diagnosis codes are sequenced first and link clearly to reconstruction necessity
Impact: Reduces medical necessity denials by 60-70% and supports higher reimbursement for complex oncologic cases
Bill co-surgery (modifier 62) appropriately when multiple specialties are genuinely required; document distinct roles of each surgeon
Impact: Maximizes appropriate reimbursement for both providers while avoiding fraud risk; each surgeon receives $737.70 when properly documented
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