Summary & Overview

CPT 40527: Full-Thickness Lip Excision with Flap Reconstruction

CPT code 40527 identifies full-thickness excision of a lip with closure using a skin flap from the opposing lip — a reconstructive procedure used to repair large lip defects. The code is relevant to specialists in oral and maxillofacial surgery, otolaryngology, and plastic surgery, and matters nationally because it captures complex facial reconstructive work that affects surgical resource use, anesthesia planning, and post‑operative care.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for the procedure, typical sites of service, and the set of common billing modifiers associated with operative services when available. The publication outlines benchmarking and coverage considerations used by major national payers, highlights coding and documentation elements essential to claims review, and summarizes policy and payment themes relevant to reconstructive lip surgery.

This summary serves clinicians, coding professionals, and policy analysts seeking a concise national overview of CPT code 40527, its clinical intent, and the payer environment that influences coverage and billing for complex lip reconstruction.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 40527lip reconstructionreconstructive surgeryfacial surgeryoperative codesurgical excisionflap repairambulatory surgeryclinical coding

Billing Code Overview

CPT code 40527 describes a surgical procedure in which the provider excises a patient’s lip, removing a full-thickness portion of the lip, and closes the defect using a skin flap harvested from the opposing lip. This operation is performed to repair large lip defects and restore continuity, form, and function of the vermilion and cutaneous lip.

Service type: Surgical excision and reconstructive flap repair of the lip (full-thickness lip excision with advancement/rotation flap closure).
Typical site of service: Ambulatory surgical center or hospital operating room where reconstructive facial surgery is performed.

Clinical & Coding Specifications

Clinical Context

A 67-year-old male presents with a full-thickness defect of the lower lip after wide excision of a biopsy-proven squamous cell carcinoma. The patient is scheduled for surgical repair under monitored anesthesia care. The surgeon performs a full-thickness excision of the involved lip tissue and reconstructs the defect using a mucocutaneous advancement flap from the remaining lip to restore oral competence and cosmesis. Typical workflow: preoperative evaluation and informed consent; lesion excision with appropriate margins; intraoperative confirmation of hemostasis; reconstruction with local flap and layered closure; postoperative recovery in PACU with instructions for wound care, oral intake restrictions, and outpatient follow-up for suture removal and pathology review.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work or complexity substantially exceeds the usual for `40527` (e.g., extensive tumor resection with complex reconstruction).
`24`	Data not available in the input.	Data not available in the input.

Taxonomy Code	Specialty	Notes
`208800000X`	Otolaryngology (ENT)	Commonly performs lip tumor excision and local flap reconstruction.
`207P00000X`	Plastic Surgery	Performs complex facial and lip reconstruction, including local flap techniques.
`207L00000X`	Oral and Maxillofacial Surgery	Performs full-thickness lip resections and reconstructive repairs, particularly when intraoral access is needed.
`207R00000X`	General Surgery	May perform lip excisions and reconstructions in certain practice settings.

ICD-10 Code	Description	Clinical Relevance
Data not available in the input.	Data not available in the input.	Data not available in the input.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`11640`	Excision, malignant lesion including margins, face, scalp, eyelids, nose, ears, lips; excised diameter 1.1 to 2.0 cm	May be performed at the same operative session as the diagnostic excision or for smaller lesions prior to a larger reconstructive `40527` when staged excision is indicated.
`12051`	Repair, intermediate, wounds of face, ears, eyelids, nose, lips; 2.6 cm to 7.5 cm	Used for layered closure of partial-thickness lip wounds; selected when defect does not require full-thickness flap as in `40527`.
`13131`	Repair, complex, forehead, cheeks, chin, tum of lip or mouth; 2.6 cm to 7.5 cm	May be used for complex layered repairs when additional reconstructive techniques are applied adjunctively to `40527`.
`14040`	Adjacent tissue transfer or rearrangement, forehead, cheeks, chin, mouth, neck; defect 10 sq cm or less	Performed when additional local flap tissue is required beyond the lip flap used in `40527`.
`88305`	Level IV pathology, surgical pathology, gross and microscopic examination	Used for histopathologic examination of the excised specimen(s) removed during the `40527` procedure.

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