Summary & Overview
CPT 28313: Surgical Correction of Toe Angular Deformity
CPT code 28313 denotes surgical correction of an angular deformity of a toe through soft-tissue release and tendon transfer. This procedure addresses deformities such as curly toes that impair function, footwear tolerance, or cause pain. Nationally, the code is relevant to orthopedics and podiatry billing for forefoot reconstructive procedures and affects reimbursements and utilization patterns across commercial and public payers. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a clinical context for when 28313 is used, typical sites of service, and the common claim considerations tied to reconstructive toe procedures. The publication also covers benchmarks for utilization and payment where available, common billing modifiers and coding practice considerations, and relevant policy or coverage updates that influence prior authorization and medical necessity review. The summary synthesizes how payers commonly handle claims for soft-tissue correction and tendon transfer in the toe, highlights areas of coding nuance, and outlines what clinicians and billing teams should expect in payer interactions and claim adjudication. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 28313 describes a surgical procedure to correct an angular deformity of a toe. The procedure involves releasing tight soft tissues and transferring muscle tendons to realign the toe and restore more normal function and position.
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Service type: Surgical correction of toe angular deformity (soft-tissue release and tendon transfer)
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Typical site of service: Hospital outpatient department or ambulatory surgery center; may also occur in an inpatient surgical setting depending on clinical complexity and provider determination.
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Clinical & Coding Specifications
Clinical Context
A 9-year-old child presents to a pediatric orthopedics clinic with a progressive angular deformity of the second and third toes causing difficulty with shoe wear and episodic pain. Conservative measures including wider footwear, toe spacers, and observation over 6–12 months failed to improve alignment and the deformity is now fixed with soft-tissue contracture and muscle imbalance. After clinical exam and weight-bearing foot radiographs to exclude bony deformity, the surgeon schedules an operative soft-tissue release and tendon transfer under general anesthesia. The procedure involves releasing tight capsular and fascial structures and transferring or rebalancing tendons to correct the angular/curly toe alignment.
Preoperative workflow includes history, focused foot exam, imaging review, informed consent, and preoperative anesthesia assessment. Intraoperative workflow includes regional block or general anesthesia, sterile prep, longitudinal or dorsal approach to the toe, release of contracted soft tissues, tendon mobilization and transfer with appropriate fixation, and wound closure. Postoperative workflow includes splinting or short-leg dressing, weight-bearing status instructions, pain control, wound care, activity restrictions, and outpatient follow-up for suture removal and rehabilitation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
59 | Distinct procedural service | Use when another procedure performed on same day is distinct and not normally reported together with . |