Summary & Overview
CPT 27626: Excision of Ankle Tendon Sheath with Synovectomy
CPT code 27626 identifies an open surgical excision of a diseased ankle tendon sheath with removal of the synovial membrane, used for both diagnosis and treatment of tenosynovial conditions. This procedure is relevant nationally for orthopedic surgery, podiatry, and specialty surgical practices managing inflammatory or degenerative tendon sheath disorders of the ankle. Payers commonly involved in coverage decisions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise clinical description, typical sites of service, and the policy and billing considerations that affect coding and reimbursement for this operative service. The publication summarizes common modifiers and payer considerations, highlights where guidance is often needed for documentation and medical necessity, and provides clinical context that clarifies when an open tendon sheath excision and synovectomy is performed versus alternative, less invasive interventions. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 27626 describes a surgical procedure in which the provider makes an incision in the ankle and removes the diseased tendon sheath along with the synovial membrane. The procedure is performed to diagnose and treat ankle tendon sheath pathology, including synovitis or tenosynovial disease.
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Service type: Surgical debridement/excision of tendon sheath for diagnostic and therapeutic purposes
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Typical site of service: Ambulatory surgical center or hospital operating room
Clinical & Coding Specifications
Clinical Context
A typical patient is a 45-year-old recreational runner who presents to the orthopedic clinic with 6 months of progressive medial ankle pain, swelling, and mechanical catching. Conservative management including rest, nonsteroidal anti-inflammatory drugs (NSAIDs), activity modification, and a course of supervised physical therapy produced incomplete relief. Clinical exam demonstrates focal tenderness over the posterior tibial tendon sheath and crepitus with resisted inversion. Imaging with ultrasound or MRI shows tenosynovitis of the posterior tibial tendon with synovial proliferation and fluid in the tendon sheath. The orthopedic surgeon schedules a tenosynovectomy of the ankle to excise the diseased tendon sheath and synovium for symptom relief and to obtain tissue for histopathology if infection or inflammatory arthropathy is suspected. The procedure is typically performed in an ambulatory surgery center or hospital outpatient department under regional block with or without monitored anesthesia care. Preoperative workflow includes informed consent, review of imaging, surgical site marking, antibiotic prophylaxis per facility protocol, and documentation of the operative indication. Postoperative workflow includes dressing and splinting, pain control, weight-bearing restrictions as indicated, discharge instructions, and scheduling follow-up for wound check and rehabilitation planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when operative work is substantially greater than typical for and well-documented (e.g., extensive synovectomy, adhesiolysis, or complex exposure). |