Summary & Overview
CPT 29895: Ankle Arthroscopy with Synovectomy
CPT code 29895 denotes an arthroscopic synovectomy of the ankle, targeting inflamed synovial tissue within the tibiotalar and fibulotalar joints. This minimally invasive surgical procedure is a key treatment for patients with persistent synovitis causing pain and limited range of motion. Nationally, arthroscopic synovectomy has implications for operative management patterns, site-of-service selection, and reimbursement pathways for orthopedic and podiatric surgical practices.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find clinical context about the procedure, typical sites of service, and the procedural elements coded by CPT code 29895. The publication provides benchmarks and operational considerations relevant to billing and coding teams, revenue cycle stakeholders, and clinical leaders, including common modifier usage and payer coverage patterns where available. It also outlines which clinical scenarios commonly justify arthroscopic synovectomy and summarizes how this code fits within orthopedic procedural coding for ankle interventions.
This summary is written for a national audience and focuses on the clinical and coding identity of CPT code 29895, what to expect in terms of service delivery, and the types of payer coverage most commonly encountered.
Billing Code Overview
CPT code 29895 describes an ankle arthroscopy with synovectomy, in which the provider uses an arthroscope to inspect the tibiotalar and fibulotalar joints and excises inflamed synovial tissue that restricts motion and causes pain. The procedure involves insertion of arthroscopic instruments to visualize the intra-articular structures and remove pathological synovium.
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Service type: Surgical, arthroscopic synovectomy of the ankle
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Typical site of service: Ambulatory surgical center or hospital operating room, performed under regional or general anesthesia
Clinical & Coding Specifications
Clinical Context
A 42-year-old patient presents with progressive ankle pain, swelling, and mechanical catching after a history of chronic ankle sprains. Conservative management (rest, NSAIDs, physical therapy, and ankle immobilization) has failed over 3–6 months. Clinical exam shows joint line tenderness and reduced dorsiflexion. Radiographs may be unremarkable or show mild degenerative change; MRI demonstrates focal synovitis and inflamed hypertrophic synovial tissue within the tibiotalar joint. The orthopedic surgeon schedules an ankle arthroscopy for synovectomy.
The procedure is performed in an ambulatory surgery center under regional or general anesthesia. The provider uses an arthroscope to inspect the tibiotalar and fibulotalar joints, inserts instruments through standard anteromedial and anterolateral portals, and excises inflamed synovial tissue (partial synovectomy) to reduce pain and restore range of motion. Estimated operative time, documentation of portals used, findings, extent of synovectomy, hemostasis, and post-operative weight-bearing instructions are included in the operative note. Typical post-op workflow includes PACU recovery, short-term analgesia, wound checks, and outpatient physical therapy referral.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician's interpretation/report separate from technical facility services (rare for arthroscopy). |