CPT 21120Surgery

Genioplasty augmentation

CPT 21120 covers chin augmentation surgery (genioplasty), a procedure to reshape or enlarge the chin using implants or bone repositioning to improve facial profile and balance.

Showing rates for

National Average

Base Medicare rate

$642.08

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

5.1

PE RVU (NF)

13.83

MP RVU

0.92

Total RVU

19.85

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

NCCI bundling edits

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Billing tips

Document medical necessity thoroughly with cephalometric analysis, photographs, and functional deficits to overcome cosmetic classification denials
Impact: Increases approval rate from approximately 40% to 85% for initial submissions, avoiding $642 denial
Bill in hospital outpatient or ASC setting when possible to capture facility fee in addition to professional component, maximizing total reimbursement
Impact: Facility captures additional $3,000-$5,000 while professional fee remains at $495.55
When performed with orthognathic surgery (21195-21196), ensure proper sequencing with modifier 51 on secondary procedure to avoid unbundling edits
Impact: Prevents claim rejection and ensures payment of approximately $248 for 21120 as secondary procedure
Separately report implant supply code (L8600-L8699) if not included in facility charges and implant cost exceeds $150
Impact: Recovers $200-$800 in implant material costs depending on device used
For revision genioplasty, append modifier 22 with detailed comparison to primary procedure documenting additional time and complexity
Impact: Captures additional $128-$192 (20-30% increase) with proper documentation of 25%+ additional work
Verify global period (090 days) and avoid billing related E/M services during postoperative period unless truly unrelated with modifier 24
Impact: Prevents $50-$150 in denied E/M claims and potential fraud flags

Common denials

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 21120 in 2025?

Medicare pays $642.08 for CPT 21120 in non-facility settings and $495.55 in facility settings (hospital outpatient or ASC) based on the 2025 Physician Fee Schedule. The difference reflects overhead costs absorbed by facilities.

Does insurance cover CPT 21120 genioplasty augmentation?

Coverage varies by payer and medical necessity. Medicare and commercial insurers typically cover 21120 when performed for reconstructive purposes (trauma, congenital deformity, functional impairment) but deny for purely cosmetic enhancement. Documentation of skeletal deficiency with cephalometric analysis is essential for approval.

What RVU value does CPT 21120 carry in 2025?

CPT 21120 has a total RVU of 19.85 for 2025, consisting of 5.1 work RVUs, 13.83 non-facility practice expense RVUs (9.3 facility PE RVUs), and 0.92 malpractice RVUs. This reflects moderate surgical complexity with significant practice expense.

Can CPT 21120 be billed with orthognathic surgery codes?

Yes, but requires careful coding. When genioplasty augmentation is performed with orthognathic procedures (21141-21196), append modifier 51 to the secondary procedure. Documentation must clearly demonstrate distinct surgical objectives - chin augmentation beyond mandibular repositioning alone - to avoid bundling denials.

What is the difference between CPT 21120 and 21121?

CPT 21120 is genioplasty augmentation (adding volume via implant), while 21121 is sliding genioplasty (repositioning chin bone without implant). Code 21120 involves implant placement for enhancement; 21121 involves osteotomy and bone advancement. Choose based on actual technique performed.

What documentation proves medical necessity for CPT 21120?

Required documentation includes lateral cephalometric radiographs with skeletal measurements (SNB angle showing retrognathia), clinical photographs demonstrating profile deficiency, documentation of functional problems (speech, mastication, occlusion), and statement linking skeletal hypoplasia to medical rather than purely aesthetic concerns.

What is the global period for CPT 21120?

CPT 21120 has a 090-day global surgical period. All routine postoperative care within 90 days is included in the reimbursement. E/M services during this period require modifier 24 (unrelated) or 25 (significant, separately identifiable) to receive payment, and unrelated issues must be thoroughly documented.