S42.146B Nondisplaced fracture of glenoid cavity of scapula, unspecified shoulder, initial encounter for open fracture

Name of the Condition

• Nondisplaced fracture of glenoid cavity of scapula, unspecified shoulder, initial encounter for open fracture

Summary

A nondisplaced fracture of the glenoid cavity of the scapula, unspecified shoulder, initial encounter for open fracture, refers to a break in the socket portion of the shoulder blade that articulates with the humerus, where the bone fragments remain in their normal anatomical position. This condition involves damage to the glenoid, a critical structure for shoulder joint stability, and is classified as an open fracture due to the skin being breached during the injury. The term "unspecified shoulder" indicates the side is not documented, and "initial encounter" denotes the first episode of care for this open fracture.

Causes

Traumatic injury is the primary cause of this fracture. Common mechanisms include falls onto the shoulder, motor vehicle accidents, sports-related impacts, or direct blows to the shoulder area. High-energy trauma, such as that from a collision, often results in open fractures due to the force required to break the skin and bone simultaneously.

Risk Factors

• Participation in contact sports or high-impact activities.
• Osteoporosis or other bone-weakening conditions.
• Advanced age, which may increase susceptibility to falls.
• Previous shoulder or upper arm injuries that affect bone integrity.

Symptoms

• Pain in the shoulder or upper back, especially with movement.
• Swelling, bruising, or tenderness over the shoulder joint.
• Limited range of motion in the shoulder.
• Difficulty lifting or rotating the arm.
• Visible wound or open skin at the fracture site.

Diagnosis

Diagnosis begins with a clinical evaluation, including a detailed history of the injury and physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays or CT scans, are typically performed to confirm the fracture and determine if it is nondisplaced. The open nature of the fracture is identified by the presence of a skin wound, and additional assessments may be done to rule out associated injuries or infections.

Treatment Options

Treatment focuses on stabilizing the fracture and managing the open wound. This may include wound cleaning and debridement to prevent infection, followed by immobilization with a sling or brace to support healing. Surgical intervention is sometimes required if the fracture is unstable or if soft tissue damage is severe. Pain management and physical therapy are often part of the recovery process to restore function.

Prognosis and Follow-Up

The prognosis for a nondisplaced open fracture of the glenoid cavity is generally favorable, especially with prompt treatment. Healing typically occurs within 6–8 weeks, but follow-up care is essential to monitor for complications such as infection or delayed union. Physical therapy may be recommended to improve strength and mobility once the fracture is stable.

Complications

• Infection at the open wound site.
• Delayed healing or nonunion of the fracture.
• Joint stiffness or reduced range of motion.
• Nerve or blood vessel damage in severe cases.

Lifestyle & Prevention

• Use protective gear during contact sports or high-risk activities.
• Maintain bone health through a balanced diet and regular exercise.
• Avoid falls by using assistive devices if balance is impaired.
• Seek prompt medical attention for shoulder injuries to prevent complications.

When to Seek Professional Help

Seek immediate medical care if you experience severe shoulder pain, visible wounds, or difficulty moving the arm after an injury. Signs of infection, such as increased redness, pus, or fever, also require urgent evaluation.

Tips for Medical Coders

This code (S42.146B) is specific to a nondisplaced fracture of the glenoid cavity of the scapula, unspecified shoulder, with an initial encounter for an open fracture. Documentation should clearly indicate the fracture type (nondisplaced), the anatomical site (glenoid cavity of scapula), the shoulder side (unspecified), and the encounter type (initial for open fracture). Ensure the open nature of the fracture is well-documented to support the code assignment.