S72.326R Nondisplaced transverse fracture of shaft of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Name of the Condition

• Nondisplaced Transverse Fracture of Shaft of Unspecified Femur, Subsequent Encounter for Open Fracture Type IIIA, IIIB, or IIIC with Malunion (ICD-10 Code: S72.326R)

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 S72.326R specifies a subsequent encounter for an open fracture type IIIA, IIIB, or IIIC with malunion, indicating the fracture has healed improperly (malunion) and was previously associated with a severe open wound (type III) during initial treatment.

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, and malunion may develop if the fracture does not heal in proper alignment.

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 fracture management or healing.

Symptoms

• Persistent pain or discomfort at the fracture site.
• Visible deformity or misalignment of the thigh.
• Limited range of motion in the hip or knee.
• Swelling, bruising, or tenderness around the healed fracture.
• Possible functional impairment, such as difficulty walking.

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging tests, such as X-rays or CT scans, to evaluate the fracture site for malunion and confirm the type of open fracture. Review of prior treatment records to determine the initial fracture classification and healing progress.

Treatment Options

Treatment may include orthopedic intervention to correct malunion, such as osteotomy (bone realignment) or internal fixation. Physical therapy to restore strength and mobility. Pain management and monitoring for complications, such as infection or nonunion. Surgical repair may be necessary if malunion causes significant functional impairment.

Prognosis and Follow-Up

Prognosis depends on the severity of malunion and the patient’s overall health. Follow-up care typically involves regular imaging to monitor healing and function. Long-term outcomes may include residual pain, limited mobility, or the need for additional interventions. Rehabilitation is often required to optimize recovery.

Complications

• Chronic pain or discomfort.
• Limited mobility or functional impairment.
• Risk of future fractures due to weakened bone.
• Potential need for additional surgery to address malunion.
• Psychological impact from prolonged recovery or disability.

Lifestyle & Prevention

• Avoid high-impact activities that risk further injury.
• Maintain bone health through diet (calcium, vitamin D) and exercise.
• Use protective gear during sports or high-risk activities.
• Follow post-treatment guidelines to support proper healing.
• Attend all follow-up appointments to monitor recovery.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity at the fracture site. Contact your healthcare provider if you notice worsening symptoms, signs of infection (e.g., fever, redness), or difficulty bearing weight on the affected leg.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and the presence of malunion clearly in the medical record. Ensure the encounter is classified as "subsequent" to reflect ongoing care for the healed fracture. Code S72.326R requires confirmation of the initial open fracture type and evidence of malunion to support accurate reporting.