S42.155B Nondisplaced fracture of neck of scapula, left shoulder, initial encounter for open fracture

Name of the Condition

• Nondisplaced fracture of neck of scapula, left shoulder, initial encounter for open fracture

Summary

A nondisplaced fracture of the neck of the scapula, left shoulder, refers to a break in the narrow portion of the shoulder blade bone that connects to the shoulder joint, where the bone fragments remain in their normal anatomical alignment. This condition affects the left shoulder and is classified as an open fracture, meaning the overlying skin is breached, exposing the fracture site. The scapular neck plays a critical role in shoulder stability, and even nondisplaced fractures can impact movement and function.

Causes

Traumatic injury is the primary cause of this fracture. Common mechanisms include high-impact events such as motor vehicle accidents, falls from a significant height, or direct blows to the shoulder or back. Open fractures occur when the force of the injury is sufficient to break the skin and underlying bone, often resulting from penetrating trauma or severe blunt force.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or other bone-weakening conditions.
• Advanced age, which may increase susceptibility to fractures from minor trauma.
• Previous shoulder or upper arm injuries that affect bone integrity.
• Exposure to high-energy trauma, such as in industrial or motor vehicle accidents.

Symptoms

• Pain in the shoulder or upper back, especially with movement.
• Swelling, bruising, or tenderness over the shoulder blade.
• Limited range of motion in the shoulder joint.
• Difficulty lifting or rotating the arm.
• Visible wound or open skin at the fracture site (for open fractures).
• Possible bleeding or discharge from the open wound.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and open wound presence. Imaging studies, such as X-rays or CT scans, are used to confirm the fracture and determine if it is nondisplaced. The open nature of the fracture is evaluated to assess for contamination or infection risk. Additional tests may be performed to rule out associated injuries, such as nerve or vascular damage.

Treatment Options

Treatment focuses on wound care for the open fracture, pain management, and immobilization to allow healing. Surgical intervention may be required to clean the wound, remove debris, and stabilize the fracture if necessary. Antibiotics are often prescribed to prevent infection. Physical therapy is typically initiated once the fracture shows signs of healing to restore range of motion and strength.

Prognosis and Follow-Up

Prognosis is generally favorable for nondisplaced fractures, especially with proper wound care and immobilization. Follow-up appointments are necessary to monitor healing, assess for infection, and adjust treatment as needed. Most patients regain full function, but recovery time may vary depending on the severity of the injury and adherence to rehabilitation.

Complications

• Infection at the open fracture site.
• Delayed healing or nonunion of the fracture.
• Nerve or vascular damage from the initial trauma.
• Chronic pain or reduced shoulder mobility.
• Post-traumatic arthritis in the shoulder joint.

Lifestyle & Prevention

• Use protective gear during high-risk activities, such as sports or work.
• Maintain bone health through a balanced diet and regular exercise.
• Avoid falls by using assistive devices if needed, especially in older adults.
• Seek prompt medical attention for open wounds to reduce infection risk.

When to Seek Professional Help

• Severe pain or swelling that does not improve with rest.
• Visible open wound at the shoulder or signs of infection (e.g., redness, pus).
• Numbness, tingling, or weakness in the arm or hand.
• Inability to move the shoulder or arm.

Tips for Medical Coders

This code (S42.155B) is specific to a nondisplaced fracture of the scapular neck, left shoulder, with an open fracture, and is used for the initial encounter. Documentation should clearly indicate the fracture type (nondisplaced), location (left shoulder), and open nature of the injury. Ensure the encounter is classified as initial, as subsequent encounters for the same injury would use different codes. Verify that the open fracture is not associated with other complications unless explicitly documented.