S72.363M Displaced segmental fracture of shaft of unspecified femur, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Displaced Segmental Fracture of Shaft of Unspecified Femur, Subsequent Encounter for Open Fracture Type I or II with Nonunion (ICD-10 Code: S72.363M)

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. This code applies to a subsequent encounter for an open fracture classified as type I or II (where the skin is breached but contamination is limited) that has progressed to nonunion, meaning the fracture has failed to heal properly after an expected period.

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. Open fractures occur when the bone pierces the skin or when external forces damage the skin over the fracture site. Nonunion may develop due to inadequate immobilization, poor blood supply, infection, or other factors that impede healing.

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.
• Inadequate initial treatment or complications during healing.

Symptoms

• Persistent pain at the fracture site, often worsening with activity.
• Swelling, bruising, or tenderness that does not resolve over time.
• 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.
• Signs of nonunion, such as a lack of healing progress on imaging.

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity, followed by imaging studies like X-rays, CT scans, or MRIs to confirm the fracture type, displacement, and nonunion status. Open fractures are evaluated for wound size, contamination, and soft tissue damage. Blood tests may be used to check for infection or nutritional deficiencies that could affect healing.

Treatment Options

Treatment focuses on promoting fracture union and addressing the open wound. Options may include surgical intervention (e.g., internal fixation with plates or nails, bone grafting) to stabilize the fracture and encourage healing. Antibiotics are used to prevent or treat infection, and wound care is essential for open fractures. Physical therapy may be recommended to restore function once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the patient’s overall health. Nonunion fractures may require additional interventions, and recovery can be prolonged. Regular follow-up with imaging is necessary to monitor healing. Long-term outcomes may include residual pain, limited mobility, or the need for assistive devices.

Complications

• Infection at the fracture site or wound.
• Delayed or failed healing (nonunion or malunion).
• Nerve or blood vessel damage.
• Chronic pain or arthritis.
• Limited mobility or functional impairment.
• Need for additional surgeries.

Lifestyle & Prevention

• Avoid high-impact activities that risk falls or trauma.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Use protective equipment during sports or work.
• Follow post-fracture care instructions to support healing.
• Quit smoking, as it impairs bone healing.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after an injury. Contact a healthcare provider if pain persists, worsens, or if you notice signs of infection (e.g., redness, pus, fever) at the fracture site. Follow up as scheduled to monitor healing and address complications.

Tips for Medical Coders

This code is used for a subsequent encounter of a displaced segmental femur shaft fracture that is open (type I or II) with nonunion. Document the fracture type, encounter stage, and nonunion status clearly. Ensure the open fracture classification (type I or II) and the presence of nonunion are supported by clinical notes and imaging. Use this code only when the encounter is for treatment of the established nonunion, not for initial fracture care.