S72.363N Displaced segmental fracture of shaft of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Displaced Segmental Fracture of Shaft of Unspecified Femur, Subsequent Encounter for Open Fracture Type IIIA, IIIB, or IIIC with Nonunion (ICD-10 Code: S72.363N)

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 IIIA, IIIB, or IIIC, where the skin is breached and contamination is extensive, and the fracture has failed to heal (nonunion).

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, and nonunion may develop due to inadequate initial treatment, infection, or poor blood supply.

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.
• Delayed or inadequate initial fracture management.

Symptoms

• Persistent pain at the fracture site, often severe and unrelieved by rest.
• Swelling, bruising, or tenderness around the affected area.
• 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 infection, such as redness, warmth, or drainage (in open fractures).

Diagnosis

Physical examination to assess deformity, swelling, and neurovascular status. Imaging studies, including X-rays, CT scans, or MRIs, to confirm the fracture pattern, assess alignment, and evaluate for nonunion or infection. Laboratory tests may be ordered to check for signs of infection or inflammation. Documentation of the fracture type (IIIA, IIIB, or IIIC) and the presence of nonunion is critical for accurate coding.

Treatment Options

• Surgical intervention, such as internal fixation with plates, screws, or intramedullary nails, to stabilize the fracture.
• Debridement of infected or necrotic tissue in open fractures.
• Bone grafting or bone stimulation techniques to promote healing in nonunion cases.
• Antibiotic therapy for open fractures to prevent or treat infection.
• Physical therapy to restore mobility and strength once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the presence of infection, and the success of treatment. Nonunion and open fractures with extensive contamination may require prolonged healing and multiple interventions. Regular follow-up with imaging and clinical assessments is necessary to monitor progress and adjust treatment. Long-term outcomes may include residual pain, limited mobility, or the need for assistive devices.

Complications

• Infection, particularly in open fractures.
• Nonunion or delayed union of the fracture.
• Nerve or vascular damage.
• Chronic pain or arthritis.
• Limb length discrepancy or deformity.
• Need for additional surgeries.

Lifestyle & Prevention

• Avoid high-impact activities that increase fracture risk.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Engage in weight-bearing exercises to strengthen bones.
• Use protective gear during sports or activities with fall risks.
• Address underlying conditions like osteoporosis to reduce fracture susceptibility.

When to Seek Professional Help

Seek immediate medical attention if experiencing severe thigh pain, inability to move the leg, visible deformity, or signs of infection (e.g., fever, redness, drainage). Follow up with a healthcare provider if pain persists, swelling worsens, or mobility does not improve after initial treatment.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and the presence of nonunion clearly in the medical record. Ensure the encounter is classified as "subsequent" (not initial) and that the fracture is open with extensive contamination. Verify that the code S72.363N is used only when the fracture has failed to heal and the encounter is for ongoing management of the open fracture.