CPT 21215Surgery

Lower jaw bone graft

CPT code 21215 covers bone grafting procedures to repair or reconstruct the lower jawbone (mandible), typically performed when bone has been lost due to trauma, infection, tumor removal, or severe periodontal disease.

Showing rates for

National Average

Base Medicare rate

$3,874.79

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

12.23

PE RVU (NF)

106.38

MP RVU

1.18

Total RVU

119.79

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

NCCI bundling edits

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Billing tips

Verify and document place of service accurately as the payment difference is $3095.56 between non-facility (POS 11, 22) and facility settings (POS 21, 23, 24)
Impact: Incorrect POS coding can result in $3095.56 underpayment or trigger recoupment if overcoded
Document graft source (autogenous vs allogeneic) and harvest site in operative report; if autogenous graft requires separate incision, consider billing 20900-20902 separately with modifier 59
Impact: Adds $300-800 when bone harvest from separate site (iliac crest, tibia) is properly documented and coded separately
When performed with tumor excision (21040, 21044, 21046, 21049), ensure documentation clearly establishes both procedures were medically necessary and sequence codes with excision first
Impact: Proper sequencing and modifier use prevents bundling denials; can preserve $1900-3800 in additional reimbursement
For Medicare patients, obtain Advanced Beneficiary Notice (ABN) if reconstruction may be deemed cosmetic rather than reconstructive; document medical necessity with pre-operative defect measurements and functional impairment
Impact: Protects against $3874.79 write-off if Medicare denies as cosmetic; shifts financial responsibility to patient with valid ABN
Submit photographic documentation (pre-op, intra-op, post-op) and 3D imaging studies (CT scan showing defect dimensions) with initial claim for complex cases to reduce probability of medical review delays
Impact: Reduces claim adjudication time by 30-45 days and decreases denial rate by approximately 60% for high-dollar claims
When billing with dental implant placement codes (21248-21249), verify coverage under medical vs dental benefit; most payers cover bone grafting under medical when medically necessary regardless of subsequent implant plans

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 21215 in 2025?

The 2025 Medicare national average reimbursement for CPT 21215 is $3,874.79 in non-facility settings and $779.23 in facility settings. The substantial difference reflects facility overhead costs absorbed by hospitals versus physician offices or ASCs.

Can CPT 21215 be billed with mandibular fracture repair codes?

Yes, CPT 21215 can be billed separately from fracture repair codes (21470-21490) when bone grafting is performed in addition to fracture fixation and is not inherent to the fracture repair itself. Use modifier 59 to indicate the graft is a distinct procedural service, and document the medical necessity for grafting beyond standard fracture treatment.

How many RVUs is CPT code 21215 worth?

CPT 21215 has a total of 119.79 RVUs for 2025, consisting of 12.23 work RVUs, 106.38 non-facility practice expense RVUs (10.68 facility PE RVUs), and 1.18 malpractice RVUs. This makes it one of the higher-valued oral and maxillofacial surgery codes.

Is bone graft harvesting included in CPT 21215 or billed separately?

It depends on the harvest site. Minor harvesting from the surgical site is included in 21215. However, when bone is harvested from a separate site requiring an additional incision (such as iliac crest, tibia, or rib), you should report the appropriate harvest code (20900-20902) separately with modifier 59, along with documentation of the additional work.

What diagnosis codes support medical necessity for CPT 21215?

Common supporting diagnoses include mandibular bone loss (M89.071), pathological fracture (M84.571A), malignant neoplasm requiring resection (C41.1), benign tumor (D16.5), osteomyelitis (M86.171A), congenital mandibular anomalies (Q75.8), and traumatic defects (S02.609A). Documentation must establish functional impairment or risk rather than purely aesthetic concerns.

Does CPT 21215 require pre-authorization from insurance carriers?

Most commercial and Medicare Advantage plans require pre-authorization for CPT 21215 due to its high cost and potential for medical necessity disputes. Traditional Medicare does not require pre-authorization but maintains the right to retrospective review. Always verify requirements with the specific payer and obtain authorization documentation before surgery.

What is the global period for CPT 21215?

CPT 21215 has a 90-day global surgical period. This means routine follow-up care for 90 days post-operatively is included in the reimbursement. Complications or unrelated problems during this period may be billed separately with appropriate modifiers (24 for unrelated E/M, 25 for significant separately identifiable E/M on same day, 78 for related return to OR, 79 for unrelated return to OR).