S43.122S Dislocation of left acromioclavicular joint, 100%-200% displacement, sequela

Name of the Condition

• Dislocation of Left Acromioclavicular Joint, 100%-200% Displacement, Sequela

Summary

This condition represents a sequela of a prior complete dislocation of the left acromioclavicular (AC) joint, where the clavicle was displaced from the acromion of the scapula by 100% to 200% of its normal width. 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, such as a fall, direct blow to the shoulder, or forceful movement, that caused the initial dislocation. The residual effects are a consequence of the original injury and its healing process.

Risk Factors

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

Symptoms

• Persistent pain or discomfort in the left shoulder, particularly over the AC joint.
• Visible or palpable deformity or prominence at the joint.
• Reduced range of motion or instability during shoulder movement.
• Possible numbness or tingling in the shoulder or arm due to nerve irritation.

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, joint alignment, or associated degenerative changes. Clinical correlation with the patient's history of prior injury is essential.

Treatment Options

• Conservative management, including physical therapy to improve strength and stability.
• Pain management with medications or modalities like heat/cold therapy.
• Orthopedic evaluation for potential surgical intervention if instability or functional impairment is severe.
• Activity modification to avoid exacerbating symptoms.

Prognosis and Follow-Up

Prognosis depends on the severity of residual displacement and functional impact. Most patients experience improvement with conservative care, though some may have persistent limitations. Regular follow-up with a healthcare provider is recommended to monitor recovery and adjust treatment as needed.

Complications

• Chronic shoulder pain or instability.
• Post-traumatic arthritis in the AC joint.
• Nerve compression or irritation leading to sensory changes.
• Reduced shoulder function affecting daily activities.

Lifestyle & Prevention

• Engage in targeted shoulder-strengthening exercises to enhance stability.
• Use protective gear during sports or activities with fall risk.
• Avoid repetitive overhead movements or heavy lifting if they exacerbate symptoms.
• Maintain a healthy weight to reduce shoulder joint stress.

When to Seek Professional Help

Seek medical attention if you experience worsening pain, new deformity, or loss of shoulder function. Prompt evaluation is important if numbness, tingling, or weakness in the arm develops, as these may indicate nerve involvement.

Tips for Medical Coders

This code is used for the sequela of a left AC joint dislocation with 100%-200% displacement. Documentation should specify the residual effects (e.g., pain, instability) and confirm the prior injury. Ensure the sequela is clearly linked to the original dislocation to support accurate coding.