M87.071
Idiopathic aseptic necrosis of right ankle
Clinical Classification Guidelines
Medical Intelligence & Overview
Idiopathic aseptic necrosis of the right ankle, classified under ICD-10 code M87.071, is a condition characterized by the loss of bone tissue in the ankle joint due to insufficient blood supply. The term 'idiopathic' indicates that the exact cause of the condition remains uncertain. This condition generally affects the talus bone, a critical component involved in ankle movement, leading to pain, stiffness, and impaired mobility. It is a relatively rare condition that can significantly impact daily activities if left untreated. Early diagnosis and management are essential to prevent joint collapse and deterioration.
Causes & Symptoms
Clinical Causes: Uncertain origin; no clear trauma or injury implicated (idiopathic) Potential vascular abnormalities restricting blood flow to the bone Repetitive stress or microtrauma to the ankle, though not always identified Underlying metabolic or vascular disorders (less common)
Key Symptoms: Persistent ankle pain, especially during movement or bearing weight Swelling around the ankle joint Reduced range of motion and stiffness Tenderness upon palpation of the affected area Possible development of a limp due to discomfort Progressive joint degeneration if untreated
Diagnostic & Treatment
Diagnosis Path: Medical history review focused on symptom duration and severity Physical examination assessing joint tenderness, swelling, and range of motion X-ray imaging to detect bone collapse, sclerosis, or cyst formation Magnetic Resonance Imaging (MRI) offers detailed visualization of early bone changes and blood supply status Additional tests may include bone scans or laboratory evaluations to exclude infectious or metabolic causes
Treatment Protocols: Conservative therapies: Rest and activity modification to reduce joint stress Non-steroidal anti-inflammatory drugs (NSAIDs) for pain relief Physiotherapy to strengthen surrounding muscles and improve mobility Use of immobilization devices, such as braces or cast, in acute phases Surgical interventions: Core decompression to improve blood flow within the bone Bone grafting procedures to support healing and regeneration Joint-preserving surgeries or ankle fusion in advanced cases Total ankle replacement may be considered in severe cases
Clinical Advice & FAQs
Billing Guidance
Is M87.071 a billable ICD-10 code?
Yes, M87.071 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M87.071?
Clinical documentation must specify the nature of Idiopathic aseptic necrosis of right ankle and any associated comorbidities for accurate reporting.
Cite this Clinical Reference