CPT 14040Surgery

Tis trnfr f/c/c/m/n/a/g/h/f

CPT 14040 covers tissue transfer or rearrangement procedures on the face, eyelids, cheeks, mouth, neck, axillae (armpits), genitalia, hands, and/or feet, typically involving adjacent tissue advancement flaps. This is a reconstructive procedure where skin and underlying tissue are moved from one area to repair a nearby defect without completely detaching the tissue from its blood supply.

Showing rates for

National Average

Base Medicare rate

$744.62

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

8.6

PE RVU (NF)

13.31

MP RVU

1.11

Total RVU

23.02

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

NCCI bundling edits

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Billing tips

Always document defect size in square centimeters before and after excision in operative note, as 14040 covers defects up to 10 sq cm; defects larger than 10 sq cm require higher-level codes (14041, 14042)
Impact: Using incorrect code based on defect size can result in $200-400 undercoding or denial for overcoding
Bill separately from excision codes (11400-11646) using modifier 59 or XS when flap is used to close the defect created by excision; these are distinct procedures
Impact: Prevents bundling denial and secures both excision payment ($150-300) plus full flap payment of $744.62
Document medical necessity clearly, especially for facial procedures; note why primary closure was inadequate (tension, distortion of landmarks, functional impairment)
Impact: Prevents medical necessity denials that would forfeit the entire $744.62 payment; appeals without this documentation succeed less than 30% of the time
Distinguish from complex repair codes (13100-13133) in documentation by describing undermining beyond wound margins, advancement of tissue on a pedicle, and flap design (rotation angle, advancement distance)
Impact: Complex repairs reimburse $250-450 vs $744.62 for flap; but incorrect coding risks audit recoupment of $300-500 difference
For multiple flaps in same session, list largest/most complex flap first without modifier 51, then subsequent flaps with modifier 51 to maximize reimbursement
Impact: Proper sequencing maximizes payment; reversed order could reduce total reimbursement by $150-300
Verify place of service matches actual location; non-facility rate ($744.62) applies to office/ASC, facility rate ($611.35) to hospital; incorrect POS triggers $133.27 overpayment recovery

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Common denials

Bundled with excision or lesion removal code due to lack of modifier 59/XS or insufficient documentation showing procedures were distinct

How to appeal: Submit operative report with highlighted sections showing separate incision for flap creation, undermining beyond excision margins, and flap design documentation. Include diagram if available. Reference CPT guidelines stating tissue rearrangement is separately reportable from excision when documented appropriately.

Medical necessity denial claiming procedure should have been billed as complex repair (13100-13133) rather than adjacent tissue transfer

How to appeal: Provide operative note demonstrating flap advancement/rotation with measurement of advancement distance, undermining dimensions beyond wound edge, and explanation of why tension-free primary closure or layered repair was not feasible. Include photos showing defect location and size relative to anatomic landmarks.

Incorrect defect size documentation leading to downcoding to simple/intermediate repair or upcoding denial for using 14040 when defect exceeded 10 sq cm

How to appeal: Submit complete operative note with clear documentation of defect measurement in square centimeters (length × width), measured after excision but before flap creation. Include ruler in photos if available. For upcoding denials, demonstrate defect was ≤10 sq cm; for downcoding, provide evidence of actual flap creation versus simple layered closure.

Lack of documentation supporting complexity beyond intermediate repair, particularly missing flap design details, undermining measurements, or rotation/advancement description

How to appeal: Resubmit with detailed operative report addendum or clarification letter from surgeon describing specific flap type (advancement/rotation/transposition), degree of rotation in degrees or advancement distance in cm, extent of undermining in all directions, and any design modifications required intraoperatively. Reference CPT Assistant articles defining adjacent tissue transfer requirements.

Frequently asked questions

What is the Medicare reimbursement rate for CPT 14040 in 2025?

The 2025 Medicare national average reimbursement for CPT 14040 is $744.62 for non-facility settings (office, ASC) and $611.35 for facility settings (hospital outpatient/inpatient). The difference of $133.27 reflects practice expense variations between settings. Actual reimbursement may vary by geographic locality based on GPCI adjustments.

Can I bill CPT 14040 with an excision code on the same day?

Yes, CPT 14040 can be billed separately from excision codes (11400-11646, 11600-11646) when the flap is used to close the excision defect, but you must append modifier 59 or XS to 14040 to indicate it is a distinct procedural service. Documentation must clearly show the excision and the separate flap creation with undermining and tissue advancement beyond simple layered closure.

What is the difference between CPT 14040 and complex repair codes?

CPT 14040 involves creating a flap by undermining and advancing/rotating adjacent tissue on a pedicle to close a defect, while complex repair codes (13100-13133) involve layered closure of wounds requiring extensive cleaning, debridement, or revision. The key distinction is that 14040 requires tissue rearrangement with advancement or rotation, not just layered suturing. Flaps typically reimburse higher ($744.62 for 14040 vs $250-450 for complex repairs) but require more extensive documentation.

How do I measure the defect size for CPT 14040?

Measure the defect in square centimeters (sq cm) after excision or debridement but before flap creation by multiplying the longest dimension by the widest perpendicular dimension (length × width = sq cm). CPT 14040 covers defects up to 10 sq cm; larger defects require 14041 (10.1-30 sq cm) or 14042 (30.1-60 sq cm). Document the measurement in your operative note and consider including a ruler in clinical photographs.

What anatomic sites are covered by CPT 14040?

CPT 14040 specifically covers adjacent tissue transfer on the face, eyelids, cheeks, mouth, neck, axillae (armpits), genitalia, hands, and feet. These are considered more complex anatomic areas requiring greater surgical skill. Different CPT codes apply to tissue transfers on the trunk (14000-14001), scalp/arms/legs (14020-14021), or forehead/cheeks/chin/mouth/neck/axillae/genitalia/hands/feet for larger defects (14041-14042).

What modifiers are most commonly used with CPT 14040?

The most common modifiers for CPT 14040 are: modifier 59/XS for distinct procedural service when billed with excision codes; modifier 51 for multiple procedures during the same session; modifier 58 for staged procedures during the global period; modifier 78 for unplanned return to OR for complications; modifiers LT/RT for laterality; and modifier 22 for unusual complexity requiring significantly more work than typical.

How many RVUs is CPT 14040 worth in 2025?

CPT 14040 has 23.02 total RVUs in 2025, consisting of 8.6 work RVUs, 13.31 non-facility practice expense RVUs (9.19 facility PE RVUs), and 1.11 malpractice RVUs. The high work RVU value of 8.6 reflects the significant physician effort, skill, and time required for adjacent tissue transfer procedures on complex anatomic sites.