S43.031 Inferior subluxation of right humerus

Name of the Condition

• Inferior Subluxation of Right Humerus

Summary

This condition involves the partial displacement of the right humerus (upper arm bone) from the glenoid fossa of the scapula, with the humeral head moving downward (inferiorly). It typically results from trauma or injury and may cause pain, instability, or restricted movement in the shoulder joint.

Causes

The primary cause is trauma, such as a fall, direct blow to the shoulder, or forceful movement that exceeds the joint's normal range of motion. Sports injuries, motor vehicle accidents, or falls are common triggers. Repetitive overhead activities or underlying joint instability may also contribute.

Risk Factors

• Participation in contact sports or activities with high shoulder strain.
• Previous shoulder dislocations or subluxations.
• Age-related joint laxity or connective tissue disorders.
• Occupations requiring repetitive overhead movements.

Symptoms

• Intense shoulder pain, especially with movement.
• Visible deformity or abnormal shoulder contour.
• Swelling, bruising, or tenderness around the joint.
• Limited range of motion or inability to move the arm.
• Sensation of the shoulder "popping out" or feeling unstable.

Diagnosis

Diagnosis begins with a clinical examination to assess pain, deformity, and range of motion. Imaging studies like X-rays or CT scans may be used to confirm the type and extent of displacement and rule out fractures.

Treatment Options

• Initial treatment often involves immobilization with a sling to reduce pain and prevent further injury.
• Physical therapy to restore strength, stability, and range of motion.
• Pain management with medications or injections.
• Surgical intervention may be considered for recurrent or severe cases.

Prognosis and Follow-Up

Most cases resolve with appropriate treatment, though recovery time varies. Follow-up care typically includes monitoring for recurrence and gradual return to activity. Physical therapy is often recommended to prevent future instability.

Complications

• Chronic shoulder instability or recurrent subluxation.
• Nerve or blood vessel damage in severe cases.
• Long-term pain or reduced mobility if untreated.

Lifestyle & Prevention

• Avoid activities that strain the shoulder until fully healed.
• Use proper techniques during sports or physical tasks.
• Strengthen shoulder muscles through targeted exercises.
• Wear protective gear during high-risk activities.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, visible deformity, inability to move the arm, or signs of nerve damage (e.g., numbness, tingling).

Tips for Medical Coders

Document the specific direction of subluxation (inferior) and laterality (right) to ensure accurate coding. Include details about trauma, symptoms, and diagnostic findings to support the code assignment.