S72.045N Nondisplaced fracture of base of neck of left femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Nondisplaced fracture of base of neck of left femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion (S72.045N)

Summary

This condition involves a break in the upper portion of the left femur (thigh bone) at the base of the femoral neck, near the hip joint. The term "nondisplaced" indicates that the bone fragments remain in their normal anatomical position. The "open fracture type IIIA, IIIB, or IIIC" designation refers to a fracture where the skin is breached, with severe soft tissue damage, and "nonunion" indicates the fracture has failed to heal properly. This type of injury requires evaluation to determine the extent of the fracture and guide appropriate management.

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 stabilization, poor blood supply, infection, or other factors affecting healing.

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 wound or open area if the fracture is open
• Persistent pain or instability indicating nonunion

Diagnosis

Physical examination to assess pain, mobility, and limb alignment. Imaging studies, including X-rays or CT scans, to visualize the fracture and assess for nonunion. Evaluation of the open wound and soft tissue damage to determine fracture type. Laboratory tests may be used to check for infection or nutritional deficiencies affecting healing.

Treatment Options

Surgical intervention, such as internal fixation or bone grafting, to stabilize the fracture and promote healing. Antibiotics or wound care for open fractures to prevent infection. Physical therapy to restore mobility and strength. Pain management and nutritional support to aid recovery.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, soft tissue damage, and response to treatment. Regular follow-up with imaging to monitor healing progress is essential. Long-term mobility and function may be affected, requiring ongoing rehabilitation. Complications like infection or persistent nonunion may require additional interventions.

Complications

• Infection, particularly with open fractures
• Persistent nonunion or delayed healing
• Avascular necrosis (loss of blood supply to the femoral head)
• Arthritis or joint damage
• Chronic pain or mobility limitations

Lifestyle & Prevention

• Maintain bone health through calcium and vitamin D intake
• Engage in weight-bearing exercise to strengthen bones
• Use protective measures during high-risk activities
• Address fall risks, especially in older adults
• Avoid smoking and excessive alcohol, which impair bone healing

When to Seek Professional Help

Seek immediate medical attention for severe hip pain, inability to bear weight, or visible wounds after trauma. Follow up with a healthcare provider if pain persists, swelling worsens, or there are signs of infection (e.g., fever, redness, drainage).

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and confirmation of nonunion. Include details on the encounter type (subsequent) and laterality (left femur). Ensure documentation supports the open fracture classification and nonunion status to justify the code.