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

Name of the Condition

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

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 "subsequent encounter" designation signifies follow-up care after the initial treatment phase, and "open fracture type IIIA, IIIB, or IIIC" refers to a fracture where the skin is breached with severe soft tissue damage. "Malunion" indicates the fracture has healed in a non-anatomical position, requiring ongoing evaluation and 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.

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)

Symptoms

• Persistent or recurrent hip or groin pain
• Inability to bear weight on the affected leg
• Swelling, bruising, or tenderness around the hip
• Leg shortening or external rotation of the affected limb
• Limited range of motion in the hip joint
• Visible deformity or abnormal alignment of the hip

Diagnosis

Physical examination to assess pain, mobility, and limb alignment. Imaging studies, including X-rays or CT scans, to visualize the fracture and assess malunion. Evaluation of soft tissue damage for open fracture classification. Review of prior treatment and healing progress to determine the need for intervention.

Treatment Options

• Pain management with medications or physical therapy
• Surgical intervention, such as osteotomy or joint replacement, to correct malunion
• Rehabilitation to restore mobility and strength
• Monitoring for complications, including infection or nonunion

Prognosis and Follow-Up

Prognosis depends on the severity of malunion, patient age, and overall health. Follow-up care may include regular imaging to assess healing and function. Long-term management may involve lifestyle modifications to prevent further injury.

Complications

• Chronic pain or disability
• Arthritis or joint degeneration
• Infection (for open fractures)
• Nonunion or delayed healing
• Nerve or vascular damage

Lifestyle & Prevention

• Maintain bone health with calcium and vitamin D
• Engage in weight-bearing exercise to strengthen bones
• Use assistive devices (e.g., canes, walkers) to reduce fall risk
• Avoid high-impact activities that may exacerbate injury
• Follow post-treatment guidelines to support healing

When to Seek Professional Help

Seek immediate medical attention for severe pain, inability to bear weight, or visible deformity. Follow up with a healthcare provider if symptoms worsen or new complications arise.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC), malunion status, and subsequent encounter details. Include clinical notes supporting the open fracture classification and evidence of malunion. Ensure the left femur and base of neck location are clearly specified.