CPT 21208Surgery

Augmentation of facial bones

CPT code 21208 covers surgical procedures to augment or build up facial bones, typically using implants or bone grafts to enhance facial contours or correct deficiencies caused by trauma, congenital conditions, or aging.

Showing rates for

National Average

Base Medicare rate

$1,570.75

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

11.42

PE RVU (NF)

36.03

MP RVU

1.11

Total RVU

48.56

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

NCCI bundling edits

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Billing tips

Always specify exact anatomic site(s) augmented in operative report and claim documentation to justify medical necessity and prevent cosmetic denials
Impact: Proper documentation can mean difference between full $1570.75 payment and complete denial; cosmetic procedures receive $0 Medicare reimbursement
Bill in non-facility setting when possible, as reimbursement is $844.25 higher ($1570.75 vs $726.50) due to practice expense differential
Impact: Setting selection impacts revenue by 116% increase in non-facility environments for identical procedure
Link to appropriate reconstructive diagnosis codes (congenital anomalies M95.-, post-traumatic S02.-, post-oncologic Z85.-) rather than cosmetic or unspecified codes
Impact: ICD-10 code selection directly determines coverage; reconstructive codes support medical necessity while cosmetic codes trigger automatic denials
When performing bilateral augmentation, verify payer policy on modifier 50 vs LT/RT on separate lines, as some payers require line-item billing
Impact: Incorrect bilateral billing format can reduce payment from $2356.13 to $1570.75, losing $785.38 in legitimate reimbursement
Document implant type, size, manufacturer, and lot numbers for both compliance and to support supply reimbursement in addition to surgical fee
Impact: Implants may be separately billable in some settings; missing documentation can forfeit $500-$3000 in implant-related revenue
Submit pre-authorization with photos, 3D imaging, and functional deficit documentation for high-value cases to prevent post-service denials
Pre-authorization reduces denial rate from 30-40% to under 5% for reconstructive facial augmentation, protecting $1570.75 per case

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 21208 in 2025?

The 2025 Medicare national average reimbursement for CPT 21208 is $1570.75 in non-facility settings and $726.50 in facility settings. The significant difference reflects practice expense variations, with non-facility rates compensating for office overhead and equipment costs. These rates are based on 48.56 total RVUs multiplied by the 2025 conversion factor of 32.3465.

Does Medicare cover facial bone augmentation under CPT 21208?

Medicare covers CPT 21208 only when performed for reconstructive purposes, not cosmetic enhancement. Covered indications include congenital facial deformities, post-traumatic skeletal defects, post-oncologic reconstruction, or severe asymmetry causing functional impairment. Purely cosmetic augmentation for aesthetic enhancement is not covered and will be denied regardless of documentation quality.

What modifiers are commonly used with CPT 21208?

Common modifiers for CPT 21208 include modifier 50 for bilateral procedures (increasing reimbursement to approximately 150%), LT/RT for laterality specification, modifier 22 for increased procedural complexity (adding 20-50% with documentation), modifier 58 for staged procedures, and modifier 59 to prevent inappropriate bundling with other facial bone procedures performed at distinct anatomic sites.

How many RVUs is CPT 21208 worth in 2025?

CPT 21208 has a total of 48.56 RVUs in 2025, consisting of 11.42 work RVUs, 36.03 non-facility practice expense RVUs (9.93 in facility settings), and 1.11 malpractice RVUs. The high PE RVU differential between facility and non-facility settings accounts for the substantial reimbursement difference between practice settings.

Can CPT 21208 be billed bilaterally with modifier 50?

Yes, CPT 21208 can be billed with modifier 50 when bilateral facial bone augmentation is performed (such as bilateral malar or mandibular augmentation). This typically results in 150% reimbursement of the unilateral rate. However, verify payer-specific policies as some require separate line items with LT/RT modifiers instead of modifier 50 for bilateral procedures.

What diagnosis codes support medical necessity for CPT 21208?

Appropriate ICD-10 codes supporting CPT 21208 include congenital craniofacial anomalies (Q75.-, Q67.4, Q87.0), acquired facial deformities (M95.0-M95.2), post-traumatic facial bone defects (sequelae codes from S02.- series), facial asymmetry (M95.0), and personal history of malignant neoplasm status post resection (Z85.818). Cosmetic diagnosis codes or enhancement requests will result in denials.

What is the global period for CPT 21208?

CPT 21208 has a 90-day global surgical period. This means the surgical fee includes all routine preoperative and postoperative care for 90 days following the procedure. Any return to the operating room for complications requires modifier 78, while staged or planned additional procedures require modifier 58 to receive separate payment during the global period.