S72.23XM Displaced subtrochanteric fracture of unspecified femur, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Displaced subtrochanteric fracture of unspecified femur, subsequent encounter for open fracture type I or II with nonunion

Summary

A displaced subtrochanteric fracture of the femur is a break in the thigh bone just below the lesser trochanter, where the bone fragments shift out of their normal alignment. This injury disrupts the structural integrity of the femur and requires ongoing medical attention to address nonunion, a condition where the fracture fails to heal properly. The fracture is classified as open (type I or II), indicating a break in the skin with minimal to moderate contamination, and this is a subsequent encounter, meaning the patient is receiving follow-up care for the nonunion.

Causes

High-impact trauma, such as falls from a height or motor vehicle accidents. Direct force to the hip or thigh region. Underlying bone conditions, including osteoporosis or osteopenia, which reduce bone density and strength. Nonunion may result from inadequate initial treatment, poor blood supply to the fracture site, or excessive movement during healing.

Risk Factors

• Advanced age, particularly in individuals over 65.
• Chronic conditions affecting bone health, such as osteoporosis or cancer.
• History of prior fractures or bone disorders.
• Participation in high-risk activities or sports with potential for falls or collisions.
• Factors that impair healing, such as smoking, diabetes, or nutritional deficiencies.

Symptoms

• Persistent severe pain in the hip, groin, or thigh area.
• Inability to bear weight on the affected leg.
• Swelling, bruising, or visible deformity at the fracture site.
• Shortening or rotation of the injured leg.
• Open wound at the fracture site (type I or II).
• Lack of healing progress over time, as indicated by nonunion.

Diagnosis

Imaging studies, such as X-rays or CT scans, to confirm the fracture and assess for nonunion. Clinical evaluation to determine the type of open fracture (I or II) and the extent of contamination. Assessment of healing progress through serial imaging and physical examination. Evaluation of underlying conditions that may contribute to nonunion, such as poor blood supply or infection.

Treatment Options

Surgical intervention to stabilize the fracture, such as internal fixation with plates, screws, or nails. Bone grafting to promote healing in cases of nonunion. Antibiotics to prevent or treat infection in open fractures. Physical therapy to restore mobility and strength once healing progresses. Pain management and wound care for open fractures.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the patient’s overall health. Nonunion may require additional interventions, such as revision surgery or bone stimulation. Regular follow-up with imaging to monitor healing is essential. Long-term rehabilitation may be needed to regain full function.

Complications

Infection at the fracture site, particularly in open fractures. Delayed or failed healing (nonunion). Malunion, where the bone heals in an incorrect position. Nerve or blood vessel damage. Chronic pain or reduced mobility. Osteoarthritis in the hip joint over time.

Lifestyle & Prevention

Maintain bone health through a diet rich in calcium and vitamin D. Engage in weight-bearing exercises to strengthen bones. Use fall prevention strategies, such as removing tripping hazards at home. Avoid high-risk activities that increase the chance of trauma. Manage chronic conditions like osteoporosis with appropriate medical care.

When to Seek Professional Help

Seek immediate medical attention for severe pain, inability to bear weight, or visible deformity. Contact a healthcare provider if an open wound is present or if symptoms worsen. Follow up with a specialist if healing does not progress as expected or if pain persists.

Tips for Medical Coders

Document the type of open fracture (I or II) and the presence of nonunion to support the code. Include details about the encounter type (subsequent) and the fracture’s displacement. Ensure documentation reflects the ongoing nature of care for nonunion and any surgical or therapeutic interventions. Verify that all relevant clinical details are captured to justify the code assignment.