S72.363K Displaced segmental fracture of shaft of unspecified femur, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Displaced Segmental Fracture of Shaft of Unspecified Femur, Subsequent Encounter for Closed Fracture with Nonunion (ICD-10 Code: S72.363K)

Summary

A displaced segmental fracture of the femur shaft involves a break in the long, central portion of the thigh bone with two separate fracture lines, creating a free-floating bone segment. The term "displaced" indicates the bone fragments are not aligned, which may result from significant trauma and can involve damage to surrounding soft tissues, such as muscles, ligaments, or nerves. The "subsequent encounter for closed fracture with nonunion" specifies this is a follow-up visit for a fracture where the skin remains intact but the bone has failed to heal properly.

Causes

Such fractures typically result from high-impact trauma, such as motor vehicle accidents, falls from significant heights, or direct blows to the thigh. Rotational forces or axial loading (e.g., during sports or industrial injuries) can also cause this type of break. Nonunion may occur due to inadequate immobilization, poor blood supply, infection, or severe initial displacement.

Risk Factors

• Participation in high-impact sports or activities.
• Osteoporosis or other bone-weakening conditions.
• Advanced age, due to decreased bone density.
• Prior history of fractures or bone abnormalities.
• Trauma or accidents involving significant force.
• Smoking or poor nutrition, which can impair healing.

Symptoms

• Persistent pain at the fracture site, even after initial treatment.
• Swelling, bruising, or tenderness that does not resolve.
• Inability to bear weight on the affected leg.
• Visible deformity or shortening of the leg (in displaced fractures).
• Possible numbness or tingling if nerve involvement occurs.
• Lack of improvement in mobility or function over time.

Diagnosis

Physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays or CT scans, to confirm the fracture pattern and evaluate for nonunion. Additional tests, like bone scans or MRI, may be used to assess blood flow and healing potential. Review of prior treatment history and imaging to determine the cause of nonunion.

Treatment Options

• Surgical intervention, such as internal fixation with plates, screws, or rods, to stabilize the fracture.
• Bone grafting to promote healing, especially in cases of nonunion.
• External fixation devices for complex or infected fractures.
• Physical therapy to restore strength and mobility once healing progresses.
• Pain management and anti-inflammatory medications to support recovery.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, patient health, and response to treatment. Nonunion may require extended healing time or additional procedures. Regular follow-up with imaging is necessary to monitor progress. Most patients can regain function with appropriate treatment, though some may experience long-term mobility limitations.

Complications

• Chronic pain or discomfort.
• Infection, especially if surgery is required.
• Nerve or vascular damage.
• Limited range of motion or arthritis in the affected leg.
• Need for additional surgeries if nonunion persists.
• Potential for leg length discrepancy.

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.
• Quit smoking, as it impairs healing.
• Use protective gear during sports or high-risk activities.
• Follow post-treatment guidelines for weight-bearing and activity restrictions.

When to Seek Professional Help

Seek immediate care if you experience severe pain, swelling, or deformity after a fall or injury. Contact your provider if pain worsens, swelling does not improve, or you notice numbness, tingling, or difficulty moving the leg. Follow up as scheduled to monitor healing and address concerns about nonunion.

Tips for Medical Coders

Document the fracture type (displaced segmental), encounter stage (subsequent), and presence of nonunion clearly. Include details on the fracture's status (closed) and any contributing factors to nonunion. Ensure coding aligns with the specific ICD-10-CM guidelines for subsequent encounters and nonunion documentation.