S43.131S Dislocation of right acromioclavicular joint, greater than 200% displacement, sequela

Name of the Condition

• Dislocation of Right Acromioclavicular Joint, Greater Than 200% Displacement, Sequela

Summary

This condition represents a sequela (late effect) of a prior complete dislocation of the right acromioclavicular (AC) joint, where the clavicle was displaced from the acromion of the scapula by more than 200%. It reflects residual effects or complications following the initial injury, which may include persistent pain, instability, or functional limitations in the shoulder.

Causes

The sequela arises from a previous traumatic event that caused a complete dislocation of the right AC joint with greater than 200% displacement. Common initial triggers include falls, direct shoulder trauma, or forceful movements, such as those seen in sports injuries or motor vehicle accidents.

Risk Factors

• History of significant shoulder trauma or prior AC joint injury.
• Inadequate or delayed treatment of the initial dislocation.
• Underlying ligamentous instability or connective tissue disorders.
• Activities or occupations involving repetitive shoulder stress.

Symptoms

• Chronic pain or discomfort at the top of the shoulder.
• Persistent swelling or visible deformity over the AC joint.
• Reduced range of motion or stiffness in the shoulder.
• Sensation of joint instability or "giving way."
• Possible numbness or tingling in the shoulder or arm.

Diagnosis

Diagnosis involves a physical examination to assess residual deformity, tenderness, and functional limitations. Imaging, such as X-rays or MRI, may be used to evaluate the extent of residual displacement or associated joint damage. Clinical correlation with the patient’s history of prior injury is essential.

Treatment Options

• Conservative management: Physical therapy to improve strength and stability.
• Pain management: NSAIDs or other analgesics for chronic discomfort.
• Surgical intervention: Considered for persistent instability or functional impairment.
• Assistive devices: Slings or braces to support the shoulder during recovery.

Prognosis and Follow-Up

Prognosis depends on the severity of residual damage and response to treatment. Most patients experience improved function with therapy, though some may have long-term limitations. Regular follow-up is recommended to monitor for complications or the need for further intervention.

Complications

• Chronic shoulder instability or recurrent dislocation.
• Post-traumatic arthritis in the AC joint.
• Persistent pain or reduced mobility.
• Nerve irritation or compression.

Lifestyle & Prevention

• Avoid activities that stress the shoulder, such as heavy lifting or contact sports.
• Engage in targeted exercises to strengthen shoulder muscles and improve stability.
• Use proper protective gear during high-risk activities.
• Maintain a healthy weight to reduce joint strain.

When to Seek Professional Help

Seek care if you experience worsening pain, new deformity, or sudden loss of shoulder function. Prompt evaluation is also advised for signs of infection, such as redness, warmth, or fever, which may indicate complications.

Tips for Medical Coders

Document the sequela status clearly, including the history of the initial dislocation and any residual effects. Ensure clinical notes specify the right-sided involvement and the extent of displacement (greater than 200%) to support accurate coding.