CPT 21141Surgery

Lefort i-1 piece w/o graft

CPT code 21141 covers a LeFort I osteotomy, a surgical procedure where the upper jaw (maxilla) is cut and repositioned in one piece without using a bone graft. This corrects severe bite problems, facial deformities, or breathing issues by moving the entire upper jaw to a new position.

Showing rates for

National Average

Base Medicare rate

$1,295.80

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

19.57

PE RVU (NF)

18.5

MP RVU

1.99

Total RVU

40.06

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

NCCI bundling edits

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Billing tips

Document medical necessity with comprehensive records including orthodontic analysis, cephalometric radiographs, and functional deficits (mastication, speech, breathing) rather than purely aesthetic concerns
Impact: Reduces denial risk by 60-70%; most denials stem from perceived cosmetic nature without functional documentation
Differentiate from 21145 (LeFort I with advancement requiring bone graft) by clearly documenting movement distance and lack of grafting in operative report
Impact: Code 21145 reimburses at higher rate; incorrect upcoding triggers audit risk while undercoding loses $200-400 per case
Obtain prior authorization with complete submission package including photos, models, cephalometric analysis, and treatment plan before scheduling
Impact: Pre-authorization approval reduces post-service denial rate from 35% to under 5% for orthognathic procedures
Bill facility fees separately using appropriate revenue codes; surgeon fee represents professional component only at $1295.8 Medicare rate
Impact: Facility component typically adds $8,000-15,000 to total case reimbursement; ensures complete revenue capture
Verify global period (090 days) and avoid billing evaluation visits or minor adjustments within 90 days post-op unless truly unrelated
Impact: Inappropriate E/M billing during global period triggers automatic denials and potential RAC audit flags
For commercial payers, confirm orthognathic surgery coverage and functional criteria before case acceptance; many plans exclude or require 2+ cm discrepancy
Pre-verification prevents $30,000-50,000 bad debt; commercial rates typically 200-350% of Medicare ($2,591-4,535)

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 21141 in 2025?

The 2025 Medicare national average reimbursement for CPT 21141 is $1,295.8 for both facility and non-facility settings, based on 40.06 total RVUs and a conversion factor of $32.3465. Actual payment may vary by geographic locality based on the GPCI adjustments for your area.

What is the difference between CPT 21141 and 21145?

CPT 21141 describes LeFort I osteotomy in one piece without bone graft, while 21145 includes bone graft placement. Use 21141 when the maxilla is repositioned with minimal advancement (typically under 5mm) that allows bony contact without grafting. Use 21145 when significant advancement creates a gap requiring interpositional bone graft for stability and healing.

Does CPT 21141 require prior authorization from insurance?

Most commercial payers and Medicare Advantage plans require prior authorization for CPT 21141 due to the high cost and need to establish medical necessity versus cosmetic intent. Traditional Medicare does not require prior authorization but does require medical necessity documentation. Verify specific payer requirements 4-6 weeks before scheduled surgery.

Can CPT 21141 be billed with mandibular osteotomy codes on the same date?

Yes, CPT 21141 can be billed with mandibular osteotomy codes (21193-21196) when bimaxillary surgery is performed, but the secondary procedure should include modifier 51 for multiple procedures. The higher-valued code bills first at 100%, and the second at 50%. Ensure operative report clearly documents both distinct procedures.

What RVU value does CPT 21141 carry in 2025?

CPT 21141 has a total RVU of 40.06 in 2025, comprised of 19.57 work RVUs, 18.5 practice expense RVUs (both facility and non-facility), and 1.99 malpractice RVUs. This high work RVU reflects the complexity and time required for maxillary osteotomy procedures.

Is CPT 21141 covered by Medicare for obstructive sleep apnea treatment?

Medicare may cover CPT 21141 for obstructive sleep apnea when maxillary repositioning is medically necessary and conservative treatments have failed, but coverage varies by MAC. Documentation must include sleep study results, failed CPAP trial, anatomical evaluation showing maxillary deficiency as causative factor, and ENT or sleep medicine consultation supporting surgical intervention.

What documentation is needed to prevent denial of CPT 21141 claims?

Essential documentation includes preoperative cephalometric analysis with measurements, functional deficit documentation (mastication, speech, breathing problems), orthodontic treatment records, photographic evidence, detailed operative report specifying osteotomy technique and fixation without grafting, and medical necessity statement distinguishing functional from cosmetic concerns. Sleep studies and airway analysis strengthen medical necessity when applicable.