CPT 21159Surgery

Lefort iii w/fhdw/o lefort i

CPT 21159 covers a complex facial surgery called LeFort III osteotomy with forehead advancement, performed without a LeFort I procedure. This surgery repositions the midface and upper facial bones to correct severe craniofacial deformities or trauma.

Showing rates for

National Average

Base Medicare rate

$2,508.15

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

43.14

PE RVU (NF)

28.15

MP RVU

6.25

Total RVU

77.54

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

NCCI bundling edits

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Billing tips

Document medical necessity with comprehensive clinical notes including airway assessment, occlusion analysis, syndromic diagnosis with genetic testing results, and photographic documentation of facial deformity
Impact: Prevents denial of $2,508.15 claim; medical necessity documentation reduces denial rate by approximately 40% for complex craniofacial procedures
Submit modifier 22 with detailed operative report highlighting unusual complexity such as revision surgery, extensive scarring, or simultaneous distraction osteogenesis placement, along with comparison to typical procedure time and effort
Impact: Can increase reimbursement by $501.63-$1,254.08 (20-50% increase) when properly documented with peer review support
Bill modifier 62 when neurosurgeon and craniofacial surgeon work as co-surgeons with distinct roles documented in separate operative reports; ensure both surgeons document their specific contributions
Impact: Enables both surgeons to receive $1,567.59 each rather than splitting a single fee; requires pre-authorization in many cases
Verify patient age and diagnosis codes meet medical necessity criteria; most payers restrict this procedure to documented craniofacial syndromes or severe trauma, not cosmetic indications
Impact: Prevents outright denial; craniofacial syndrome diagnosis (Q75.x series) typically required for approval
Obtain prior authorization at least 30-60 days before surgery with complete surgical plan, imaging studies, multidisciplinary team evaluation notes, and expected hospital course
Impact: Reduces post-service denial risk by 65-80%; many payers require pre-authorization for this high-cost procedure

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Frequently asked questions

What is the 2025 Medicare reimbursement rate for CPT code 21159?

The 2025 Medicare national average reimbursement for CPT 21159 is $2,508.15 for both facility and non-facility settings. This rate is based on 77.54 total RVUs (43.14 work RVU, 28.15 PE RVU, 6.25 MP RVU) multiplied by the 2025 conversion factor of 32.3465.

What does CPT code 21159 include?

CPT 21159 includes LeFort III osteotomy with forehead advancement performed without a LeFort I procedure. This involves separating the entire midface from the skull base and advancing the frontal bone to correct severe craniofacial deformities. It includes all osteotomies, bone repositioning, and rigid fixation but excludes bone grafting from separate donor sites.

Can CPT 21159 be billed with modifier 62 for co-surgeons?

Yes, modifier 62 is appropriate when two surgeons of different specialties (typically a craniofacial surgeon and neurosurgeon) perform distinct portions of the LeFort III with forehead advancement as planned co-surgeons. Each surgeon receives 62.5% of the Medicare allowed amount ($1,567.59 each) when properly documented with separate operative reports.

What diagnoses support medical necessity for CPT 21159?

Medical necessity for 21159 is typically supported by craniofacial syndromes including Crouzon syndrome (Q75.1), Apert syndrome (Q87.0), Pfeiffer syndrome (Q87.0), or severe midface hypoplasia from other causes. Complex panfacial trauma requiring simultaneous midface and frontal reconstruction may also qualify. Purely cosmetic indications are not covered.

How many RVUs is CPT code 21159 worth in 2025?

CPT 21159 has 77.54 total RVUs in 2025, consisting of 43.14 work RVUs, 28.15 practice expense RVUs (both facility and non-facility), and 6.25 malpractice RVUs. This makes it one of the highest-valued craniofacial surgical procedures.

What is the difference between CPT 21159 and 21160?

CPT 21159 is LeFort III with forehead advancement WITHOUT LeFort I, while 21160 is LeFort III with forehead advancement WITH LeFort I osteotomy. Code 21160 includes additional lower midface osteotomy and repositioning, representing more extensive surgery for pan-midface retrusion, and carries higher reimbursement.

Does CPT 21159 require prior authorization?

Most commercial payers and Medicare Advantage plans require prior authorization for CPT 21159 due to its high cost and complexity. Authorization typically requires submission of clinical notes, imaging studies, craniofacial team evaluation, and detailed surgical plan 30-60 days before the procedure. Check specific payer policies as requirements vary.