Summary & Overview
CPT 14040: Local Flap Repair of Soft Tissue Defect ≤10 cm²
CPT code 14040 denotes surgical repair of soft-tissue defects using adjacent tissue (local flap) for defects measuring 10 cm² or less, commonly performed on the head, neck, axillae, genitalia, hands, and feet. This procedure is a core reconstructive option after excision of lesions, trauma, or other tissue loss and is relevant to surgical, dermatologic, and plastic surgery practices nationwide. It matters nationally because local flap repairs affect operative planning, resource use, site-of-service selection, and billing complexity for outpatient and ambulatory surgical care.
Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and service settings, typical payer coverage patterns, and common billing considerations tied to procedure complexity and site of service. The publication highlights benchmarks and policy-relevant elements such as coding specificity for defect size, typical utilization settings (operating room, ambulatory surgery center, procedure suite), and implications for claims processing and authorization workflows. The content is intended to inform billing professionals, surgical providers, and policy analysts about the clinical definition and administrative framing of CPT code 14040 at a national level.
Billing Code Overview
CPT code 14040 describes surgical repair of a soft tissue defect by using adjacent healthy tissue (local flap) for a defect of 10 cm² or less. The procedure covers repair of lesions located on the forehead, cheeks, chin, mouth, neck, axillae (armpits), genitalia, hands, and feet.
Service type: Surgical repair — local flap closure of soft tissue defect
Typical site of service: Operating room, ambulatory surgery center, or procedure suite
Clinical & Coding Specifications
Clinical Context
A 54-year-old male presents to a dermatologic surgery clinic after an excisional biopsy of a suspicious lesion on the left cheek confirming invasive squamous cell carcinoma. The surgical team plans a local tissue rearrangement (local flap) to close the resultant defect of approximately 8 cm2. The patient arrives the day of surgery fasting, preoperative consent and history/physical completed, and receives local anesthesia with monitored sedation in an outpatient procedure room. The provider marks adjacent tissue flaps, excises any residual scar or tissue as needed, elevates a flap from the adjacent cheek/temporal area, and advances/rotates the flap to achieve tension-free closure. Hemostasis is obtained, layered closure performed, and the site dressed. Postoperative instructions and wound care are reviewed prior to discharge; follow-up is scheduled in 5–7 days for suture removal and wound assessment.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
50 | Bilateral procedure | When identical flap repairs are performed on both sides of a paired anatomic site (rare for unilateral facial flaps). |
51 | Multiple procedures | When this flap repair is billed on the same day with other distinct procedural codes (e.g., excision elsewhere). |
52 | Reduced services | When the procedure is partially performed or limited compared with the full descriptor. |
53 | Discontinued procedure | When the procedure is started but terminated due to unforeseen circumstances before completion. |
59 | Distinct procedural service | When another procedure is performed at a distinct site or session separate from the flap repair. |
62 | Two surgeons | When two surgeons work together as co-surgeons performing distinct portions of the flap reconstruction. |
76 | Repeat procedure by same physician | When the same physician repeats the procedure later the same day. |
77 | Repeat procedure by another physician | When a different physician repeats the procedure later the same day. |
78 | Return to operating room for a related procedure following initial procedure on the same date of service | For example, return for revision or control of postoperative bleeding. |
79 | Unrelated procedure or service by the same physician during the postoperative period | When an unrelated procedure is performed during the global period. |
80 | Assistant surgeon | When an assistant surgeon participates and billing requires the assistant modifier. |
62 | Co-surgeon (alternate usage) | When two surgeons with different skills are required for the flap reconstruction. |
22 | Increased procedural services | When work required is substantially greater than typically required for this code (documentation must support). |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 207K00000X | Dermatology | Dermatologic surgeons commonly perform excision and local flap repairs for cutaneous malignancy and complex closures. |
| 208000000X | General Surgery | General surgeons perform soft-tissue excisions and local flap reconstruction in appropriate settings. |
| 207L00000X | Plastic Surgery | Plastic and reconstructive surgeons perform local flaps for functional or cosmetic reconstruction of face, hands, and genitalia. |
| 207R00000X | Otolaryngology (ENT) | Head and neck surgeons perform flap reconstruction for defects in the face, mouth, and neck regions. |
| 2083P0800X | Surgical Oncology | Surgical oncologists may perform excision and immediate local flap reconstruction for oncologic defects. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
C44.91 | Squamous cell carcinoma of skin, unspecified site | Common malignant diagnosis leading to excision and reconstructive flap closure of facial or other cutaneous defects. |
C44.31 | Basal cell carcinoma of skin of eyelid, including canthus | Basal cell carcinoma excision sometimes requires adjacent tissue transfer for reconstruction when near facial subunits. |
S01.441A | Laceration with foreign body of right cheek, initial encounter | Traumatic soft-tissue defects may require local flap repair when primary closure is not possible. |
L98.4 | Non-healing surgical wound | Secondary procedures including local flap may be performed for chronic non-healing wounds or dehisced closures. |
D22.9 | Melanocytic nevi, unspecified | Large or atypical nevi excised for pathology may require local flap reconstruction depending on defect size and location. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
14060 | Adjacent tissue transfer or rearrangement, forehead, cheeks, chin, mouth, neck, axillae, genitalia, hands and/or feet; defect 31.1 sq cm to 60.0 sq cm | Used for larger defects that exceed the size limit for 14040; represents next size tier in the adjacent tissue transfer family. |
14020 | Adjacent tissue transfer or rearrangement, forehead, cheeks, chin, mouth, neck, axillae, genitalia, hands and/or feet; defect 10.1 sq cm to 30.0 sq cm | Alternative size tier when the defect measures slightly larger than the 14040 threshold; select code matching measured defect size. |
13132 | Repair, complex, forehead, cheeks, chin, mouth, neck, axillae, genitalia, hands and/or feet; 2.6 cm to 7.5 cm | Complex layered closure codes may be used when a primary complex repair (not flap) is appropriate; used in workflow when local flap is not indicated. |
11642 | Excision, malignant lesion including margins, trunk, arms, legs; excised diameter 1.1 to 2.0 cm | Represents the excision of the malignant lesion that often precedes reconstruction; select site-appropriate excision code. |
57022 | Closure of vulvar defect, complex, may be performed with local flap techniques (site-specific example) | Site-specific closure codes may be used in genital repairs or in conjunction with adjacent tissue transfer techniques. |