CMM-406: Arthroscopy Ankle

Ankle arthroscopy (including arthroscopically aided repair and endoscopic plantar fasciotomy) is covered when documented combinations of qualifying subjective symptoms, objective exam findings, and imaging (or documented inconclusive imaging) are present and the patient has failed specified conservative therapy; procedures are excluded when contraindications or red-flag conditions exist (e.g., active infection, peripheral vascular disease, uncontrolled comorbidities, inability to comply with restrictions, or urgent fractures/locked joint). Key requirements: documentation of the specified symptoms and exam findings, appropriate imaging (X‑ray/CT/MRI/ultrasound as indicated) or documented inconclusive imaging, and failure of at least 6 weeks of defined conservative care (with bracing required ≥3 months if used, walker boot 1–2 months when applicable, and plantar fascia corticosteroid injection unless contraindicated), plus documentation to support the specific CPT billed.