S72.26XK Nondisplaced subtrochanteric fracture of unspecified femur, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Nondisplaced subtrochanteric fracture of unspecified femur, subsequent encounter for closed fracture with nonunion

Summary

A nondisplaced subtrochanteric fracture is a break in the femur (thigh bone) just below the lesser trochanter, where the bone fragments remain in their normal alignment. This condition is classified as a closed fracture (skin remains intact) with nonunion, meaning the fracture has not healed properly after an initial injury. The femur is unspecified, and this is a subsequent encounter for treatment.

Causes

High-impact trauma, such as falls or direct force to the hip/thigh, is the primary cause. Underlying bone conditions like osteoporosis may increase susceptibility to fracture. Nonunion can result from inadequate immobilization, poor blood supply to the fracture site, or infection.

Risk Factors

• Advanced age, particularly over 65
• Osteoporosis or reduced bone density
• History of prior fractures or bone disorders
• Smoking or poor nutrition affecting bone healing
• Use of certain medications (e.g., corticosteroids)

Symptoms

• Persistent pain in the hip, groin, or thigh
• Inability to bear weight on the affected leg
• Swelling or bruising at the fracture site
• Possible deformity or instability in the leg

Diagnosis

Physical examination to evaluate pain, swelling, and limb alignment. Imaging studies, such as X-rays or CT scans, to confirm the fracture location and assess nonunion. Assessment for associated injuries or complications.

Treatment Options

• Surgical intervention (e.g., internal fixation) to stabilize the fracture
• Bone grafting to promote healing
• Pain management with medications
• Physical therapy to restore mobility and strength
• Follow-up imaging to monitor healing progress

Prognosis and Follow-Up

Prognosis depends on the severity of nonunion and overall health. Regular follow-up with imaging is necessary to assess healing. Long-term mobility may be affected, and rehabilitation is often required to regain function.

Complications

• Chronic pain or disability
• Infection at the fracture site
• Malunion (improper healing)
• Avascular necrosis (loss of blood supply to the bone)
• Need for additional surgery

Lifestyle & Prevention

• Maintain bone health with calcium and vitamin D
• Avoid high-impact activities that increase fall risk
• Use assistive devices (e.g., canes) if mobility is impaired
• Quit smoking to improve bone healing
• Engage in low-impact exercises to strengthen bones and muscles

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, inability to bear weight, or signs of infection (e.g., fever, redness, drainage) at the fracture site.

Tips for Medical Coders

Document the encounter as a subsequent visit for a closed fracture with nonunion. Include details on the fracture's location (subtrochanteric), displacement status (nondisplaced), and whether the femur is specified. Note any surgical interventions or imaging results to support the nonunion diagnosis.