S42.123 Displaced fracture of acromial process, unspecified shoulder

Name of the Condition

• Displaced fracture of acromial process, unspecified shoulder

Summary

A displaced fracture of the acromial process, unspecified shoulder, refers to a break in the bony projection (acromion) of the scapula where the bone fragments are not aligned. The acromial process forms part of the shoulder's roof and connects to the clavicle, contributing to joint stability. This injury typically results from trauma and may affect shoulder function due to misalignment or associated soft tissue damage.

Causes

Traumatic injury is the primary cause, often from a direct blow to the shoulder, a fall onto the shoulder, or a forceful impact during activities like sports or accidents. High-energy events, such as motor vehicle collisions, can also lead to this type of fracture.

Risk Factors

• Participation in contact sports or activities with a risk of shoulder impact.
• Osteoporosis or conditions that weaken bone density.
• Advanced age, which may increase susceptibility to fractures from minor trauma.
• Previous shoulder injuries that compromise bone integrity.

Symptoms

• Pain localized to the top of the shoulder, especially with movement.
• Swelling, bruising, or tenderness over the acromial area.
• Limited range of motion in the shoulder joint.
• Difficulty lifting or rotating the arm.
• In severe cases, a visible deformity or instability may be present.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays or CT scans, are typically used to confirm the fracture and evaluate displacement. Additional tests may be ordered to rule out associated injuries to soft tissues or other bones.

Treatment Options

Treatment depends on the severity of displacement and patient factors. Non-displaced fractures may be managed with immobilization, rest, and pain relief. Displaced fractures often require realignment (reduction) and stabilization, which may involve casting, bracing, or surgery. Physical therapy is commonly recommended to restore function.

Prognosis and Follow-Up

Most fractures heal with appropriate treatment, but recovery time varies. Follow-up appointments monitor healing and adjust treatment plans. Complications like nonunion or arthritis may affect long-term outcomes, particularly in severe cases.

Complications

Potential complications include nonunion (failure to heal), malunion (poor alignment), shoulder stiffness, or arthritis. Nerve or blood vessel damage is rare but possible with severe trauma.

Lifestyle & Prevention

Avoid high-impact activities until cleared by a healthcare provider. Strengthen shoulder muscles and maintain bone health through diet and exercise to reduce fracture risk. Use protective gear during sports or activities with fall risks.

When to Seek Professional Help

Seek immediate care for severe pain, visible deformity, inability to move the shoulder, or signs of infection (e.g., fever, redness). Persistent pain or limited motion after initial treatment also warrants evaluation.

Tips for Medical Coders

Document the side (right/left/unspecified) and displacement status clearly. For unspecified shoulder, confirm the absence of laterality details in the record. Ensure trauma mechanism and treatment approaches are noted to support code assignment.