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). |