S42.156G Nondisplaced fracture of neck of scapula, unspecified shoulder, subsequent encounter for fracture with delayed healing

Name of the Condition

• Nondisplaced fracture of neck of scapula, unspecified shoulder, subsequent encounter for fracture with delayed healing

Summary

A nondisplaced fracture of the neck of the scapula, unspecified shoulder, refers to a break in the narrow portion of the shoulder blade bone that connects the body of the scapula to the glenoid fossa (shoulder joint), where the bone fragments remain in their normal anatomical alignment. This condition is classified as a subsequent encounter for fracture with delayed healing, indicating the patient is receiving care after the initial injury and healing is progressing more slowly than expected. The scapular neck plays a key role in shoulder stability and movement, and while nondisplaced fractures typically have less severe functional impairment than displaced fractures, delayed healing may prolong recovery.

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. Sports-related collisions or forceful impacts during physical activities may also result in this type of fracture. The unspecified shoulder designation indicates the injury could affect either the left or right side, depending on the direction of impact or body positioning during the event. Delayed healing may occur due to factors such as poor blood supply to the scapular neck, inadequate immobilization, or underlying health conditions affecting bone healing.

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.
• Smoking or poor nutrition, which can impair bone healing.
• Certain medical conditions, such as diabetes or vascular disease, that affect tissue repair.

Symptoms

• Persistent pain in the shoulder or upper back, especially with movement.
• Swelling, bruising, or tenderness over the shoulder blade that does not improve over time.
• Limited range of motion in the shoulder joint, with stiffness or discomfort during activity.
• Difficulty lifting or rotating the arm, even with gentle movement.
• A sense of instability or weakness in the affected shoulder.

Diagnosis

Diagnosis typically involves a combination of clinical evaluation and imaging studies. A healthcare provider will assess the patient's symptoms, mechanism of injury, and physical examination findings, including tenderness, swelling, and range of motion. Imaging is essential to confirm the fracture and assess healing progress; X-rays are commonly used initially, while computed tomography (CT) or magnetic resonance imaging (MRI) may be ordered if detailed visualization of the fracture or surrounding tissues is needed. Follow-up imaging may be performed to evaluate delayed healing, showing signs such as persistent fracture lines or inadequate callus formation. Laboratory tests, such as inflammatory markers, may also be considered to rule out infection or other contributing factors.

Treatment Options

Treatment focuses on promoting healing and restoring function. Initial management may include immobilization with a sling or brace to reduce stress on the fracture site. Pain management, such as nonsteroidal anti-inflammatory drugs (NSAIDs) or analgesics, is often prescribed. Physical therapy is typically introduced once healing allows, to improve range of motion, strength, and functional recovery. In cases of significant delayed healing, additional interventions may be considered, such as bone stimulation devices, nutritional support, or addressing underlying health conditions. Surgical intervention is rare for nondisplaced fractures but may be necessary if healing does not progress or if complications arise.

Prognosis and Follow-Up

The prognosis for a nondisplaced scapular neck fracture with delayed healing is generally favorable, though recovery may take longer than usual. Most patients achieve full functional recovery with appropriate treatment, but the timeline can vary depending on the extent of healing delay and individual factors. Regular follow-up appointments are important to monitor healing progress through clinical assessment and imaging. Adjustments to treatment, such as extending immobilization or modifying physical therapy, may be made based on healing status. Patients are advised to avoid activities that stress the shoulder until cleared by their healthcare provider.

Complications

• Prolonged pain or discomfort due to incomplete healing.
• Reduced range of motion or stiffness in the shoulder joint.
• Muscle weakness or atrophy from disuse.
• Rarely, nonunion (failure of the fracture to heal) or malunion (healing in an abnormal position).
• Nerve or blood vessel injury in the shoulder region, though this is uncommon with nondisplaced fractures.
• Psychological impact, such as frustration or anxiety related to prolonged recovery.

Lifestyle & Prevention

• Avoid high-impact activities or contact sports until fully healed and cleared by a healthcare provider.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Engage in low-impact exercises, such as swimming or walking, to preserve mobility without stressing the fracture.
• Use proper safety equipment during activities with a risk of falls or collisions.
• Quit smoking and limit alcohol intake, as these can impair bone healing.
• Follow prescribed treatment plans, including immobilization and physical therapy, to optimize recovery.

When to Seek Professional Help

Seek medical attention if you experience:

• Worsening pain, swelling, or bruising in the shoulder or upper back.
• New or increasing difficulty moving the arm or shoulder.
• Signs of infection, such as redness, warmth, or fever.
• Numbness, tingling, or weakness in the arm or hand.
• Persistent instability or a sense that the shoulder is "giving way."

Tips for Medical Coders

This code (S42.156G) is used for a nondisplaced fracture of the neck of the scapula, unspecified shoulder, during a subsequent encounter for fracture with delayed healing. Documentation should specify the fracture type (nondisplaced), location (