S42.255K Nondisplaced fracture of greater tuberosity of left humerus, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of greater tuberosity of left humerus, subsequent encounter for fracture with nonunion (ICD-10 Code: S42.255K)

Summary

This condition involves a nondisplaced fracture of the greater tuberosity, a bony prominence on the upper end of the left humerus (upper arm bone) near the shoulder joint. The fracture is classified as a subsequent encounter, indicating follow-up care after the initial injury, and is associated with nonunion, meaning the bone has failed to heal properly. The greater tuberosity serves as an attachment point for shoulder muscles and ligaments, and its fracture may affect shoulder function.

Causes

Fractures of the greater tuberosity typically result from direct trauma, such as a fall onto the shoulder, a direct blow to the area, or forceful muscle contraction (e.g., during sports or lifting). Nonunion may occur due to inadequate immobilization, poor blood supply to the fracture site, infection, or excessive movement during healing.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or other conditions that weaken bone density.
• Advanced age, which increases susceptibility to fractures.
• Previous shoulder injuries or surgeries.
• Smoking or poor nutrition, which can impair bone healing.

Symptoms

• Persistent pain in the shoulder or upper arm, often worsening with activity.
• Swelling, bruising, and tenderness around the shoulder.
• Difficulty moving the arm, especially with overhead motions.
• Possible deformity or visible lump at the fracture site.
• Sensation of instability or weakness in the shoulder.

Diagnosis

Physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays or CT scans, to evaluate fracture healing and detect nonunion. Additional tests, like bone scans or MRI, may be used to assess blood flow and tissue viability at the fracture site.

Treatment Options

• Immobilization with a sling or brace to stabilize the shoulder.
• Pain management with medications or physical therapy.
• Surgical intervention, such as bone grafting or internal fixation, to promote healing.
• Rehabilitation exercises to restore strength and mobility once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of nonunion and response to treatment. Follow-up care is essential to monitor healing and adjust treatment as needed. Regular imaging may be required to assess progress. Long-term outcomes may include persistent pain or reduced shoulder function if healing is incomplete.

Complications

• Chronic pain or instability in the shoulder.
• Limited range of motion or weakness.
• Increased risk of future fractures due to weakened bone.
• Infection or other surgical complications if intervention is required.

Lifestyle & Prevention

• Avoid high-impact activities until 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.
• Use protective gear during sports or activities with fall risks.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or inability to move the arm. Contact a healthcare provider if symptoms worsen or do not improve with conservative treatment, or if you notice signs of infection (e.g., redness, fever).

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture care with nonunion. Ensure clinical notes specify the fracture type (nondisplaced), location (left humerus greater tuberosity), and the presence of nonunion. Include details on treatment provided and any imaging results to support coding accuracy.