S72.325K Nondisplaced transverse fracture of shaft of left femur, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Nondisplaced Transverse Fracture of Shaft of Left Femur, Subsequent Encounter for Closed Fracture with Nonunion (ICD-10 Code: S72.325K)

Summary

A nondisplaced transverse fracture of the shaft of the left femur is a break in the long, central portion of the left thigh bone, where the fracture line runs horizontally across the bone and the bone fragments remain aligned. This type of fracture involves the diaphysis (main structural part) of the femur and is classified as closed, meaning the overlying skin is intact. The "subsequent encounter" designation indicates this is a follow-up visit for the fracture, and "nonunion" refers to a failure of the bone 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 or axial loading injuries (e.g., during sports or industrial accidents) can also cause this type of break. Nonunion may occur due to inadequate immobilization, poor blood supply to the fracture site, infection, or excessive movement during 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.
• Smoking or poor nutrition, which can impair bone healing.
• Certain medical conditions (e.g., diabetes, vascular disease) that affect healing.

Symptoms

• Persistent or recurrent pain at the fracture site.
• Swelling, bruising, or tenderness around the affected area.
• Inability to bear weight on the left leg.
• Possible deformity or instability if the fracture has shifted.
• Limited range of motion in the hip or knee.

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging tests, such as X-rays or CT scans, to confirm the fracture and evaluate for nonunion (e.g., visible gap between bone fragments or lack of callus formation). Additional tests (e.g., bone scans) may be used to assess blood flow and healing potential.

Treatment Options

• Immobilization with a cast or brace to stabilize the fracture.
• Surgical intervention, such as internal fixation (plates, screws) or bone grafting, to promote healing.
• Physical therapy to restore strength and mobility.
• Pain management with medications or other modalities.
• Monitoring for signs of infection or further complications.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion, overall health, and response to treatment. Follow-up visits are essential to assess healing progress, adjust treatment plans, and address any complications. Long-term outcomes may include full recovery with proper healing or persistent limitations in mobility.

Complications

• Chronic pain or discomfort.
• Limited mobility or functional impairment.
• Infection at the fracture site.
• Nerve or vascular damage.
• Need for additional surgeries if healing does not occur.

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 activities with fall risks.
• Follow post-treatment instructions carefully to optimize healing.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or inability to move the leg, or if symptoms worsen after treatment. Contact your provider if you notice signs of infection (e.g., redness, pus) or if the fracture does not improve as expected.

Tips for Medical Coders

Document the encounter as a subsequent visit for a closed fracture with nonunion. Ensure the record specifies the fracture type (nondisplaced transverse), location (shaft of left femur), and the presence of nonunion. Include details about treatment provided and any imaging or clinical findings that support the nonunion diagnosis.