S43.132 Dislocation of left acromioclavicular joint, greater than 200% displacement

Name of the Condition

• Dislocation of Left Acromioclavicular Joint, Greater Than 200% Displacement

Summary

This condition involves a complete dislocation of the left acromioclavicular (AC) joint, where the clavicle is displaced from the acromion of the scapula by more than 200%. It typically results from significant trauma and may cause severe 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

• Severe 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.
• Surgical intervention for severe cases or persistent instability.

Prognosis and Follow-Up

Recovery depends on the severity of the injury and treatment approach. Most patients regain function with appropriate care, but follow-up appointments may be needed to monitor healing and address any residual symptoms.

Complications

• Chronic shoulder instability or pain.
• Nerve or vascular damage in severe cases.
• Arthritis in the joint over time.

Lifestyle & Prevention

• Use protective gear during sports or high-risk activities.
• Strengthen shoulder muscles through exercise.
• Avoid falls by maintaining balance and using assistive devices if needed.

When to Seek Professional Help

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

Tips for Medical Coders

This code (S43.132) specifies a left-sided AC joint dislocation with >200% displacement. Ensure documentation confirms the side (left) and displacement percentage to support accurate coding. Note that this code is for initial encounters unless modified by a 7th character.