S43.129 Dislocation of unspecified acromioclavicular joint, 100%-200% displacement

Name of the Condition

• Dislocation of Unspecified Acromioclavicular Joint, 100%-200% Displacement

Summary

This condition involves a complete dislocation of the acromioclavicular (AC) joint, where the clavicle is displaced from the acromion of the scapula by 100% to 200% of its normal width. It typically results from trauma and may cause pain, instability, or restricted movement in the shoulder.

Causes

Traumatic events like falls, direct blows to the shoulder, or forceful movements can cause this dislocation. Sports injuries, motor vehicle accidents, or falls are common triggers.

Risk Factors

• Participation in contact sports or activities with high fall risk.
• Previous shoulder injuries or ligamentous instability.
• Age-related degeneration or connective tissue disorders.
• Occupations requiring repetitive arm or shoulder movements.

Symptoms

• Pain and tenderness around the top of the shoulder.
• Visible deformity or swelling over the acromioclavicular joint.
• Limited range of motion in the shoulder.
• Sensation of the joint "popping out" or feeling unstable.

Diagnosis

Diagnosis typically involves a physical examination to assess tenderness, deformity, and range of motion. Imaging tests like X-rays may be used to confirm displacement and rule out fractures.

Treatment Options

• Non-surgical treatments such as rest, ice, and physical therapy to reduce pain and restore function.
• Surgical intervention may be considered for severe cases or persistent instability.

Prognosis and Follow-Up

Most patients recover with appropriate treatment, though recovery time varies. Follow-up care may include physical therapy to regain strength and mobility. Long-term outcomes depend on the severity of the injury and adherence to rehabilitation.

Complications

• Chronic shoulder instability or recurrent dislocations.
• Nerve or blood vessel damage in severe cases.
• Persistent pain or reduced range of motion.

Lifestyle & Prevention

• Use protective gear during contact sports.
• Avoid high-risk activities that may lead to falls or direct shoulder impacts.
• Strengthen shoulder muscles through regular exercise to improve stability.

When to Seek Professional Help

Seek immediate medical attention if you experience severe shoulder pain, visible deformity, or inability to move the shoulder after an injury.

Tips for Medical Coders

Document the side (right/left/unspecified) and displacement percentage (100%-200%) to ensure accurate coding. Include details of trauma or mechanism of injury when available.