M87.011 Idiopathic aseptic necrosis of right shoulder

Name of the Condition

• Idiopathic Aseptic Necrosis of Right Shoulder
• Also known as Avascular Necrosis of the Right Shoulder

Summary

Idiopathic aseptic necrosis of the right shoulder is a condition where bone tissue in the shoulder dies due to a lack of blood supply, without a known cause. This can lead to pain, joint damage, and loss of function in the affected shoulder.

Causes

The exact cause is unknown, but the condition results from disrupted blood flow to the bone. It is termed "idiopathic" because the specific reason for the blood supply disruption is not identified.

Risk Factors

• Corticosteroid use
• Alcohol consumption
• Trauma or injury to the shoulder
• Blood disorders (e.g., sickle cell disease)
• Thrombophilia (increased clotting tendency)
• Certain metabolic or autoimmune disorders

Symptoms

• Pain in the right shoulder, especially with movement
• Swelling or tenderness around the shoulder joint
• Limited range of motion in the shoulder
• Joint stiffness
• Weakness in the affected arm

Diagnosis

Diagnosis is confirmed through physical examination and imaging tests, such as X-rays, MRI, or CT scans, to assess bone health and detect tissue death in the shoulder.

Treatment Options

• Medications: Pain relievers (e.g., NSAIDs) and anti-inflammatories
• Physical therapy: To preserve joint function and mobility
• Surgical options: Core decompression, bone grafting, or joint replacement in advanced cases

Prognosis and Follow-Up

Prognosis depends on the stage of the condition and treatment. Early intervention may improve outcomes, while advanced cases may require more aggressive management. Regular follow-up is important to monitor joint function and adjust treatment as needed.

Complications

• Progressive joint damage
• Osteoarthritis
• Loss of shoulder function
• Chronic pain

Lifestyle & Prevention

• Avoid excessive alcohol consumption
• Use corticosteroids only as prescribed
• Protect the shoulder from injury
• Maintain a healthy weight to reduce joint stress

When to Seek Professional Help

Seek medical attention if you experience persistent shoulder pain, swelling, or loss of function, especially if symptoms worsen over time.

Tips for Medical Coders

Document the specific location (right shoulder) and confirm the idiopathic nature of the condition. Ensure clinical notes support the diagnosis and exclude other causes of bone necrosis.