CPT 21151Surgery

Lefort ii w/bone grafts

CPT 21151 covers a LeFort II osteotomy, a complex facial surgery that repositions the midface (upper jaw and surrounding bones) and includes bone grafts to fill gaps and stabilize the new position. This procedure corrects severe facial deformities, trauma injuries, or congenital conditions affecting the midface structure.

Showing rates for

National Average

Base Medicare rate

$1,752.86

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

29.02

PE RVU (NF)

20.99

MP RVU

4.18

Total RVU

54.19

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

NCCI bundling edits

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Billing tips

Document bone graft source explicitly (autogenous vs. allogeneic) and harvest site if autogenous, as this is inherent to 21151 and should not be separately billed
Impact: Prevents unbundling denials and potential fraud allegations; bone graft harvest from separate incision may be separately billable with modifier 59
Capture all co-surgeon arrangements in advance with clear documentation of each surgeon's distinct role in the operative report, particularly when OMFS and plastic surgery collaborate
Impact: Ensures both surgeons receive appropriate 62.5% reimbursement ($1095.54 each) rather than risking denials for duplicate billing
Bill facility rate ($1752.86) when performed in hospital or ASC setting; verify place of service code matches actual location to avoid rate discrepancies
Impact: Incorrect POS coding can trigger audits; both facility and non-facility rates are identical for 21151 at $1752.86, simplifying billing
Use modifier 22 judiciously with comprehensive documentation of increased complexity, including operative time comparison to typical cases and specific anatomical challenges encountered
Impact: Successful modifier 22 claims can increase reimbursement by $350-525 (20-30% above base rate), but requires manual review and strong justification
Verify preauthorization requirements for craniofacial procedures, as many commercial payers require prior approval for LeFort osteotomies with specific medical necessity criteria
Impact: Prevents complete claim denials; delays in authorization can result in 100% payment denial ($1752.86 loss) if performed without approval
Document medical necessity clearly, especially when performed for obstructive sleep apnea or cosmetic concerns, linking to functional impairment and failed conservative treatments

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 21151 in 2025?

The 2025 Medicare national average reimbursement for CPT 21151 is $1752.86 for both facility and non-facility settings. This is based on 54.19 total RVUs (29.02 work RVU, 20.99 PE RVU, 4.18 MP RVU) multiplied by the 2025 conversion factor of 32.3465. Actual reimbursement may vary by geographic locality based on GPCI adjustments.

Can CPT 21151 be billed with bone graft harvest codes separately?

Bone grafting is included in CPT 21151 and should not be separately billed in most cases. However, if bone is harvested from a separate distant site through a separate incision (such as iliac crest harvest requiring distinct incision and closure), you may bill the harvest code separately with modifier 59 to indicate a distinct procedural service, though this requires careful documentation and payer policy review.

What is the global period for CPT 21151?

CPT 21151 has a 90-day global surgical period. This means all routine postoperative care for 90 days following the procedure is included in the reimbursement, including routine follow-up visits, removal of sutures, and expected postoperative management. Complications requiring return to the OR may be billed separately with appropriate modifiers (78 or 79).

Which medical specialties typically perform and bill CPT 21151?

CPT 21151 is most commonly billed by oral and maxillofacial surgeons, plastic and reconstructive surgeons with craniofacial fellowship training, and otolaryngologists specializing in facial plastic surgery. Many LeFort II procedures are performed by co-surgeons from different specialties working together, particularly in academic medical centers with dedicated craniofacial teams.

How do I justify medical necessity for CPT 21151 to avoid denials?

Document functional impairment such as obstructive sleep apnea with failed CPAP, severe malocclusion preventing normal mastication, speech impairment, or breathing obstruction. Include objective studies (sleep studies, cephalometric analysis, airway measurements), failed conservative treatments, specialist evaluations, and clear linkage between the midface deformity and functional deficit. Pre-operative photographs and imaging demonstrating anatomical abnormality strengthen the case.

What are the work RVUs for CPT 21151 in 2025?

CPT 21151 has 29.02 work RVUs in 2025, reflecting the significant physician effort, skill, and time required for this complex craniofacial procedure. Combined with 20.99 practice expense RVUs and 4.18 malpractice RVUs, the total is 54.19 RVUs, making this one of the higher-valued procedures in oral and maxillofacial surgery coding.

Can CPT 21151 be performed in an outpatient setting or does it require hospitalization?

While CPT 21151 can technically be performed in hospital outpatient or ambulatory surgical center settings, the complexity and risk profile typically necessitate inpatient hospitalization for most patients. The facility and non-facility Medicare rates are identical at $1752.86, but the setting decision depends on patient comorbidities, expected blood loss, anesthesia duration, and postoperative monitoring requirements rather than reimbursement differences.