S72.325N Nondisplaced transverse fracture of shaft of left femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Nondisplaced Transverse Fracture of Shaft of Left Femur, Subsequent Encounter for Open Fracture Type IIIA, IIIB, or IIIC with Nonunion (ICD-10 Code: S72.325N)

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. The "subsequent encounter" designation indicates this is a follow-up visit for an established fracture, and "open fracture type IIIA, IIIB, or IIIC" refers to a severe open fracture with significant soft tissue damage, contamination, or vascular injury. The "nonunion" modifier indicates 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 force to the thigh. Rotational or axial loading injuries (e.g., during sports or industrial accidents) can also cause this type of break. Open fractures occur when the bone pierces the skin or when external forces disrupt the soft tissue overlying the fracture site. Nonunion may develop due to inadequate stabilization, poor blood supply, infection, or other factors interfering with 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 fracture management or complications like infection.

Symptoms

• Persistent pain at the fracture site, often chronic or worsening.
• 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 signs of prior open fracture (e.g., scarring, tissue damage).
• Limited range of motion or instability in the affected leg.

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging tests, such as X-rays, CT scans, or MRI, are used to evaluate fracture healing and identify nonunion. Assessment of soft tissue damage and vascular status may be necessary for open fractures. Laboratory tests (e.g., inflammatory markers) can help detect infection or other complications.

Treatment Options

Treatment focuses on promoting fracture union and managing complications. Options may include surgical intervention (e.g., internal fixation, bone grafting) to stabilize the fracture and address nonunion. Antibiotics or wound care may be required for open fractures. Physical therapy is often recommended to restore strength and mobility. Pain management and monitoring for infection or other complications are also key.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, success of treatment, and patient factors (e.g., age, overall health). Nonunion may require additional interventions, and recovery can be prolonged. Regular follow-up with imaging and clinical assessments is essential to monitor healing and address complications. Long-term outcomes may include residual pain, limited mobility, or the need for assistive devices.

Complications

• Nonunion or delayed union of the fracture.
• Infection (especially with open fractures).
• Nerve or vascular damage.
• Chronic pain or arthritis.
• Limited mobility or functional impairment.
• Need for additional surgeries.

Lifestyle & Prevention

• Avoid high-impact activities that risk injury.
• Maintain bone health through diet (e.g., calcium, vitamin D) and exercise.
• Use protective equipment during sports or work.
• Follow post-injury care instructions to support healing.
• Address underlying conditions (e.g., osteoporosis) to reduce fracture risk.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or inability to bear weight, or if you notice signs of infection (e.g., fever, redness, drainage) at the fracture site. Follow up with your healthcare provider if pain persists, mobility worsens, or you have concerns about healing.

Tips for Medical Coders

Document the fracture type (nondisplaced transverse), location (shaft of left femur), encounter type (subsequent), open fracture classification (IIIA, IIIB, or IIIC), and nonunion status clearly. Ensure the record supports the severity of the open fracture and the reason for nonunion (e.g., inadequate healing, infection). Use this code only when the fracture is established and being treated in a subsequent encounter with documented nonunion.