S72.043N Displaced fracture of base of neck of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Displaced fracture of base of neck of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion (S72.043N)

Summary

This condition involves a break in the upper portion of the femur (thigh bone) at the base of the femoral neck, near the hip joint. The term "displaced" indicates that the bone fragments have shifted out of their normal anatomical position. The fracture is classified as open (type IIIA, IIIB, or IIIC), meaning there is a break in the skin with significant soft tissue damage, and "nonunion" indicates the fracture has failed to heal properly. This type of injury typically requires ongoing medical evaluation to address both the fracture and associated soft tissue complications.

Causes

High-impact trauma, such as falls or motor vehicle accidents, is a common cause. In older adults, particularly those with weakened bone density (e.g., osteoporosis), fractures may occur from minor trauma or low-impact events. Direct force to the hip or thigh region can also result in this injury. Nonunion may develop due to inadequate initial treatment, poor blood supply to the bone, or infection.

Risk Factors

• Advanced age, especially in individuals over 65
• Osteoporosis or other bone-weakening conditions
• Female gender, due to higher osteoporosis prevalence
• History of prior fractures or bone diseases
• Participation in high-risk activities (e.g., contact sports)
• Poor nutrition or smoking, which can impair bone healing

Symptoms

• Severe pain in the hip or groin area
• Swelling, bruising, or tenderness around the hip
• Inability to bear weight on the affected leg
• Visible deformity or shortening of the leg
• Limited range of motion in the hip joint
• Open wound or exposed bone (for open fractures)
• Persistent pain or instability indicating nonunion

Diagnosis

Physical examination is performed to assess pain, swelling, and deformity. Imaging studies, such as X-rays or CT scans, are used to confirm the fracture, evaluate displacement, and assess for nonunion. For open fractures, the wound is examined to determine the extent of soft tissue damage and risk of infection. Blood tests may be ordered to check for signs of infection or healing issues.

Treatment Options

Treatment focuses on stabilizing the fracture, promoting healing, and managing soft tissue damage. Surgical intervention, such as internal fixation or bone grafting, may be required to address nonunion. Open fractures require thorough wound cleaning and possible debridement to prevent infection. Antibiotics and pain management are typically part of the treatment plan. Rehabilitation, including physical therapy, is often necessary to restore mobility and strength.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the patient’s overall health. Nonunion and open fractures may require extended recovery and multiple interventions. Regular follow-up appointments are essential to monitor healing, assess for complications, and adjust treatment as needed. Long-term outcomes may include reduced mobility or chronic pain, particularly if healing is delayed.

Complications

• Infection, especially with open fractures
• Nonunion or delayed healing
• Avascular necrosis (loss of blood supply to the femoral head)
• Post-traumatic arthritis
• Chronic pain or instability
• Nerve or blood vessel damage
• Deep vein thrombosis (DVT) or pulmonary embolism

Lifestyle & Prevention

• Maintain bone health through a diet rich in calcium and vitamin D
• Engage in weight-bearing exercise to strengthen bones
• Use assistive devices (e.g., canes, walkers) to prevent falls, especially in older adults
• Avoid high-risk activities that increase fracture risk
• Quit smoking, as it impairs bone healing
• Follow post-treatment guidelines to support recovery and prevent re-injury

When to Seek Professional Help

Seek immediate medical attention if you experience severe hip pain, inability to bear weight, visible deformity, or an open wound after trauma. Contact your healthcare provider if you have persistent pain, swelling, or signs of infection (e.g., fever, redness, drainage) following treatment.

Tips for Medical Coders

This code is used for a subsequent encounter for an open fracture (type IIIA, IIIB, or IIIC) of the femoral neck with nonunion. Documentation must specify the fracture type (open, with soft tissue damage details), the encounter type (subsequent), and the presence of nonunion. Ensure the record includes details about the fracture’s healing status and any complications to support accurate coding.