CPT 21340Surgery

Perq tx nasoethmoid fx

CPT 21340 covers the percutaneous (through the skin) treatment of a nasoethmoid fracture, which is a complex break involving the bones between the nose and eyes. This procedure uses minimally invasive techniques to realign and stabilize the fractured bones without open surgery.

Showing rates for

National Average

Base Medicare rate

$738.79

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

11.49

PE RVU (NF)

9.68

MP RVU

1.67

Total RVU

22.84

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

NCCI bundling edits

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Billing tips

Document image guidance separately when fluoroscopy or CT navigation is used during percutaneous reduction
Impact: Additional $150-300 reimbursement for imaging codes 77002 or 76000 when medically necessary and documented
Verify fracture complexity and displacement in operative report to support percutaneous approach versus simple nasal fracture codes
Impact: 21340 pays $738.79 versus simple nasal fracture codes (21315-21320) paying $200-400; inadequate documentation triggers downcoding
Bill on date of definitive treatment, not initial emergency department evaluation, and ensure separate E/M is appropriately modified
Impact: Prevents bundling denials; E/M with modifier 25 can add $100-200 when medically necessary and documented separately
Confirm fracture involves ethmoid complex, not just nasal bones alone, through CT documentation in medical record
Impact: Nasoethmoid complexity justifies higher RVU (22.84) versus simple nasal codes; lack of documentation risks $400+ downcoding
Submit claims with trauma diagnosis codes (S02.19XA for initial encounter) and place of service consistent with facility billing
Impact: Proper diagnosis coding reduces denial rate by 15-20%; POS mismatch between professional and facility claims triggers audits
For bilateral procedures, document separate operative notes for each side or clearly delineate bilateral work to support modifier 50
Impact: Bilateral modifier appropriately applied increases reimbursement by $369.40 when supported by documentation

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 21340 in 2025?

The 2025 Medicare national average reimbursement for CPT 21340 is $738.79 for both facility and non-facility settings. This rate is based on a total RVU of 22.84 multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary based on geographic locality adjustments.

What is the difference between CPT 21340 and 21315 for nasal fracture treatment?

CPT 21340 is for percutaneous treatment of nasoethmoid complex fractures involving the ethmoid bone and medial orbital structures, while 21315 covers simple closed treatment of nasal bone fractures without manipulation. Code 21340 has significantly higher complexity (22.84 RVUs vs approximately 3-4 RVUs) and requires documentation of ethmoid complex involvement and percutaneous technique.

Can I bill an E/M service on the same day as CPT 21340?

Yes, you can bill a separate E/M service with modifier 25 on the same date as 21340 if the evaluation represents a significant, separately identifiable service beyond the typical preoperative assessment. Documentation must clearly show the E/M addressed issues distinct from the immediate decision for surgery, such as comprehensive trauma evaluation or management of unrelated conditions.

What RVU values are assigned to CPT code 21340?

CPT 21340 has a work RVU of 11.49, practice expense RVU of 9.68 (both facility and non-facility), and malpractice RVU of 1.67, totaling 22.84 RVUs. These 2025 values reflect the complexity of percutaneous nasoethmoid fracture treatment and associated surgical risk.

Is CPT 21340 considered a bilateral procedure?

While the nasoethmoid complex spans the midline, CPT 21340 can be billed with modifier 50 when fracture fragments on both sides of the midline require separate percutaneous reduction and the operative report documents distinct manipulation of bilateral components. Clear documentation of bilateral work is essential as payers frequently question bilateral claims for centrally located structures.

What documentation is required to support billing CPT 21340?

Essential documentation includes preoperative CT imaging confirming nasoethmoid fracture, detailed operative report describing percutaneous approach and specific reduction techniques, documentation of which bones were manipulated (nasal, ethmoid, medial orbital wall), fixation method if applicable, and medical necessity justification for percutaneous versus open approach. Image guidance documentation should be included if fluoroscopy or CT navigation was used.

How long is the global period for CPT 21340?

CPT 21340 has a 90-day global surgical period. This means all routine postoperative care for 90 days following the procedure is included in the reimbursement rate of $738.79. Any unrelated procedures or treatment of complications during this period require appropriate modifiers (78 or 79) to receive separate payment.