S72.326B Nondisplaced transverse fracture of shaft of unspecified femur, initial encounter for open fracture type I or II

Name of the Condition

• Nondisplaced Transverse Fracture of Shaft of Unspecified Femur, Initial Encounter for Open Fracture Type I or II (ICD-10 Code: S72.326B)

Summary

A nondisplaced transverse fracture of the femur shaft is a break in the long, central portion of the thigh bone where the fracture line runs horizontally across the bone, and the bone fragments remain aligned without separation. This type of fracture involves the diaphysis (main structural part) of the femur and may be associated with soft tissue injury or instability, though displacement is absent. The code S72.326B specifies an initial encounter for an open fracture type I or II, indicating the fracture communicates with the external environment through a skin wound that is typically small and clean.

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 trauma is severe enough to pierce the skin, exposing the fracture site to the external environment.

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.
• Open fractures may be more likely in situations where the skin is directly compromised by the injury mechanism.

Symptoms

• Sharp, localized pain in the thigh.
• Swelling, bruising, or tenderness around the fracture site.
• Inability to bear weight on the affected leg.
• Possible numbness or tingling if nerve involvement occurs.
• Visible skin wound (for open fractures) at the site of injury.

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging tests such as X-rays to visualize the fracture pattern and confirm nondisplacement. Assessment of the skin wound for open fracture classification (type I or II) to determine the extent of soft tissue involvement. Evaluation of surrounding tissues for signs of infection or further injury.

Treatment Options

• Stabilization with casting or bracing for nondisplaced fractures.
• Surgical intervention (e.g., internal fixation) if instability or soft tissue damage is present.
• Wound care and antibiotics for open fractures to prevent infection.
• Pain management and physical therapy to restore mobility and strength.
• Close monitoring for signs of complications, such as infection or nonunion.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with proper immobilization and care. Open fractures require careful monitoring for infection, which can delay healing. Follow-up appointments are necessary to assess fracture union and functional recovery. Physical therapy may be recommended to restore range of motion and strength. Long-term outcomes depend on the severity of the injury and adherence to treatment plans.

Complications

• Infection (more common in open fractures).
• Delayed healing or nonunion.
• Malunion (improper healing leading to deformity).
• Nerve or vascular damage.
• Chronic pain or stiffness.
• Post-traumatic arthritis in severe cases.

Lifestyle & Prevention

• Use protective gear during high-impact activities.
• Maintain bone health through diet and exercise to reduce fracture risk.
• Avoid falls by modifying the home environment (e.g., removing tripping hazards).
• Seek prompt medical attention for injuries to prevent complications.
• Follow rehabilitation guidelines to optimize recovery.

When to Seek Professional Help

• Severe or worsening pain.
• Signs of infection (e.g., redness, pus, fever).
• Numbness, tingling, or loss of circulation in the affected leg.
• Inability to bear weight or move the leg.
• Worsening swelling or deformity.
• Any concerns about fracture healing or recovery.

Tips for Medical Coders

When coding S72.326B, ensure the documentation specifies a nondisplaced transverse fracture of the femur shaft, an initial encounter, and an open fracture type I or II. Verify that the fracture is not displaced and that the open wound classification is clearly documented. Confirm the encounter is initial (not subsequent or sequela) and that the femur is unspecified (not right or left). Accurate documentation of the fracture type, displacement, and wound status is critical for correct code assignment.