Summary & Overview
CPT 27816: Open Fixation of Trimalleolar Ankle Fracture
CPT code 27816 designates open surgical fixation of trimalleolar ankle fractures involving the medial, lateral, and posterior malleoli without manipulation. This code captures a common orthopedic procedure for stable ankle fractures requiring internal fixation to restore joint alignment and enable early mobilization. Nationally, accurate coding for this procedure matters for surgical quality tracking, payment integrity, and outcome measurement in musculoskeletal care.
Payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise synthesis of clinical context, typical sites of service, and payer coverage considerations relevant to this procedure. The publication also outlines common benchmarks used for utilization and billing, highlights policy or coverage items that affect authorization and site-of-service decisions, and summarizes coding nuances that influence claims processing.
This overview is intended for clinicians, coding professionals, and policy analysts seeking a clear reference to the clinical intent and billing implications of CPT code 27816, with national applicability across major commercial and public payers.
Billing Code Overview
CPT code 27816 describes open treatment of trimalleolar ankle fractures involving fixation of the medial, lateral, and posterior malleoli without manipulation. This procedure is indicated for stable trimalleolar fractures that are treated surgically with internal fixation.
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Service type: Surgical orthopedic fracture fixation
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Typical site of service: Hospital inpatient or outpatient surgical facility, including ambulatory surgery centers, depending on clinical severity and institutional protocols.
Clinical & Coding Specifications
Clinical Context
A 42-year-old male presents after a low-energy fall while playing recreational soccer, reporting immediate ankle pain, swelling, and inability to bear weight. Radiographs and CT imaging demonstrate an isolated trimalleolar ankle fracture involving the medial, lateral, and posterior malleoli without significant displacement requiring closed manipulation. The orthopedic trauma surgeon schedules an open reduction and internal fixation (ORIF) of the trimalleolar fracture under general or regional anesthesia. Typical workflow: preoperative assessment and informed consent in the clinic, pre-op imaging review and templating, anesthesia evaluation, performance of CPT 27816 in an operating room or ambulatory surgery center with intraoperative fluoroscopy, application of internal fixation (plates/screws) to the three malleoli, postoperative recovery with immobilization or splinting, and early outpatient follow-up for wound check and progression to weight bearing as directed by the surgeon.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
56 | Preoperative management only | Use when the surgeon performs only the preoperative evaluation and another surgeon performs the definitive CPT 27816 procedure. |