CPT 21246Surgery

Reconstruction of jaw

CPT code 21246 covers surgical reconstruction of the jaw bone, typically performed after trauma, tumor removal, or congenital deformities. This is a complex procedure that rebuilds the jaw structure to restore function and appearance.

Showing rates for

National Average

Base Medicare rate

$827.42

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

12.92

PE RVU (NF)

11.35

MP RVU

1.31

Total RVU

25.58

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

NCCI bundling edits

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Billing tips

Document graft harvest site separately with appropriate add-on codes (20900-20902 series) when autogenous bone is harvested from iliac crest, rib, or other donor sites
Impact: Additional $200-$500 reimbursement depending on harvest complexity and site; failure to report separately leaves significant money on table
Obtain pre-authorization with detailed surgical plan, photographs, CT imaging, and narrative medical necessity statement 4-6 weeks before scheduled surgery
Impact: Pre-authorization approval reduces claim denial risk by 80-90%; retrospective denials of $827.42 base payment plus associated codes can exceed $2,000
Use modifier 22 for extensive reconstructions with comprehensive documentation including operative time comparison, defect measurements in centimeters, number of fixation plates/screws, and graft volume
Impact: Well-documented modifier 22 claims can yield 20-50% payment increase ($165-$414 additional) versus losing appeal without proper documentation
Submit claims with detailed operative report, pre-operative imaging reports, pathology reports for oncologic cases, and trauma documentation to support medical necessity on initial submission
Impact: Clean claim submission reduces processing time by 15-30 days and decreases denial rate from 25-30% to under 10%
Verify whether Medicare or commercial payer considers 21246 facility-only; some payers restrict payment to hospital settings and deny ASC or office claims outright
Impact: Setting verification prevents $827.42 denials; facility rates identical for 21246 but place of service errors create payment delays of 45-60 days
Coordinate with anesthesia billing to ensure proper documentation of medical necessity for general anesthesia and extended operative time typical with jaw reconstruction

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 21246 in 2025?

The 2025 Medicare national average payment for CPT 21246 is $827.42 for both facility and non-facility settings. This rate is based on 25.58 total RVUs (12.92 work RVU, 11.35 PE RVU, and 1.31 MP RVU) multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary by locality based on geographic practice cost indices.

Does CPT 21246 include bone graft harvesting?

No, CPT 21246 does not include autogenous bone graft harvesting from a separate donor site. When bone is harvested from the iliac crest, rib, or other distant site, report the appropriate bone graft procurement code (20900-20902 series) separately. However, the code does include minimal bone harvesting from the immediate surgical site.

What documentation is required to bill CPT 21246?

Required documentation includes a detailed operative report with defect measurements and reconstruction technique, pre-operative imaging confirming structural defect, medical necessity justification emphasizing functional rather than cosmetic issues, graft source documentation if applicable, and pathology reports for oncologic cases. Pre-authorization documentation and photographs are also typically needed.

Can CPT 21246 be billed bilaterally?

Yes, when jaw reconstruction is performed on both sides during the same operative session, modifier 50 (bilateral procedure) should be appended. This typically results in 150% of the base payment. Alternatively, some payers may prefer modifiers LT and RT on separate line items. Documentation must clearly demonstrate bilateral reconstruction was medically necessary.

What is the global period for CPT 21246?

CPT 21246 carries a 90-day global surgical package. This means routine postoperative care for 90 days following the procedure is included in the payment and should not be billed separately. Complications requiring return to the operating room should be reported with modifier 78, while unrelated procedures during the global period require modifier 79.

How do I appeal a cosmetic exclusion denial for CPT 21246?

To appeal a cosmetic denial, submit documentation emphasizing functional impairment including masticatory dysfunction with objective measurements, nutritional impact, speech difficulties, TMJ dysfunction, or chronic pain. Include pre-operative functional assessments, dietary consultation notes showing eating restrictions, quality of life questionnaires, and clinical photographs demonstrating structural rather than purely aesthetic issues.

What modifiers are most commonly used with CPT 21246?

The most common modifiers include modifier 22 for increased procedural complexity due to extensive defects, modifier 50 for bilateral procedures, modifier 62 for co-surgery when multiple surgeons work together, modifier 78 for related returns to OR during the global period, and modifiers LT/RT for laterality specification. Modifier 22 requires detailed documentation comparing the actual procedure to typical cases to justify additional payment.