Summary & Overview
CPT 26862: Interphalangeal Joint Fusion of Finger
CPT code 26862 denotes surgical arthrodesis (fusion) of an interphalangeal joint of the finger using autologous bone graft, with or without internal fixation. Nationally, this code captures definitive surgical management for painful, unstable, or arthritic interphalangeal joints when joint preservation is not feasible. It is relevant for procedural billing, utilization monitoring, and care-pathway design in hand surgery and orthopedic practice.
Key payers in the scope of this publication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for interphalangeal arthrodesis, operational settings where the service is delivered, and the common billing modifiers associated with this service. The publication highlights benchmarks and coverage considerations typically addressed by major commercial carriers and Medicare, and it summarizes coding nuances that affect claim submission and reimbursement workflows.
This resource is intended to inform billing managers, coding professionals, revenue cycle staff, and clinical leaders about the clinical purpose of CPT code 26862, probable sites of service, and payer coverage landscape at a national level. Data not available in the input is identified explicitly where applicable.
Billing Code Overview
CPT code 26862 describes a surgical procedure to immobilize an interphalangeal joint of the finger by promoting fusion of the joint. The surgeon may or may not place an internal fixation device and uses an autograft taken from another part of the patient’s body to induce bone formation and achieve arthrodesis.
Service type: Surgical — Hand/Upper Extremity Orthopedic Procedure
Typical site of service: Operating room or ambulatory surgical center, often performed by orthopedic or hand surgery specialists under regional or general anesthesia.
Clinical & Coding Specifications
Clinical Context
A 58-year-old right-hand–dominant woman presents with chronic pain, instability, and progressive deformity of the distal interphalangeal (DIP) joint of the right index finger following prior trauma and osteoarthritis. Conservative measures including splinting, NSAIDs, and corticosteroid injection provided only temporary relief. The hand surgeon evaluates radiographs showing joint space narrowing and subchondral sclerosis consistent with end-stage DIP osteoarthritis. The surgeon schedules a surgical fusion of the interphalangeal joint with autologous bone grafting and internal fixation.
Preoperative workflow includes history and focused hand examination, imaging review (plain radiographs and occasional CT), informed consent, and preoperative medical clearance. Intraoperative steps include regional or general anesthesia, exposure of the affected interphalangeal joint, debridement of cartilage, preparation of bone surfaces, placement of an autologous bone graft (harvested from a local site such as distal radius or iliac crest if needed), and internal fixation (e.g., headless compression screw or Kirschner-wire) to achieve arthrodesis. Postoperative care includes immobilization in a splint or cast, wound care, pain management, hand therapy for adjacent joint mobility, and radiographic follow-up to document fusion.
Typical site of service: ambulatory surgery center or hospital outpatient surgical suite. Service type: operative/major procedure — small bone joint arthrodesis of the finger (interphalangeal joint). Typical patient scenario: adults with traumatic post-traumatic arthritis, primary osteoarthritis, or failed prior reconstruction in need of joint fusion for pain relief and stability.
Coding Specifications
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