Summary & Overview
CPT 40700: Unilateral Cleft Lip Repair with Nasal Deformity
CPT code 40700 designates the surgical repair of a unilateral partial or complete cleft lip, often including correction of an associated nasal deformity. As a reconstructive procedure performed by plastic or craniofacial surgeons, this code is central to pediatric and adult cleft care pathways and to the provision of functional and aesthetic restoration. Nationally, cleft lip repair affects access to specialty surgical services, coordination of multidisciplinary care, and reimbursement policy for congenital anomaly treatment.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical scope and service context, typical sites of service, and the payer landscape most relevant to coverage and claims processing. The publication also provides benchmarking context where available, notes on common billing modifiers, and guidance on clinical documentation themes tied to procedure indication and laterality.
This summary is designed to help coding professionals, revenue cycle staff, and policy analysts quickly understand what CPT code 40700 represents, how it fits into surgical service lines, and which major payers commonly handle claims for this procedure. Data not available in the input is explicitly noted where applicable.
Billing Code Overview
CPT code 40700 describes the surgical repair of a partial or complete cleft lip defect or associated nasal deformity for a unilateral procedure (repair of one side only). This procedure addresses congenital or acquired defects of the upper lip and nearby nasal structures and typically involves tissue repair, reconstruction, and closure techniques to restore form and function.
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Service type: Surgical repair / reconstructive surgery of the cleft lip and nasal deformity
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Typical site of service: Hospital operating room or ambulatory surgery center (outpatient surgical suite)
Clinical & Coding Specifications
Clinical Context
A full-term infant is evaluated by a pediatrician at a newborn nursery exam and found to have a unilateral complete cleft lip extending into the nasal sill. The patient is referred to a pediatric plastic surgeon and a multidisciplinary craniofacial team. Preoperative assessment includes feeding evaluation, growth and airway review, and anesthesia clearance. The surgeon schedules a primary unilateral cleft lip repair under general anesthesia in an ambulatory surgery center or pediatric hospital operating room when the infant reaches an appropriate age and weight (commonly about 3 months), following local institutional timing protocols. The procedure includes surgical closure of the lip defect, anatomic muscle repair, and nasal cartilage repositioning to restore form and function. Postoperative care includes short inpatient or same-day observation, wound care instructions, pain management, feeding support, and follow-up with the craniofacial team for potential staged nasal or orthodontic interventions.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No specific modifier; standard reporting | Use when no modifier applies and payer accepts unmodified codes |
51 | Multiple procedures |