S72.113R Displaced fracture of greater trochanter of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Name of the Condition

• Displaced fracture of greater trochanter of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Summary

A displaced fracture of the greater trochanter of the femur is a break in the bony prominence on the upper part of the thigh bone (femur) near the hip joint, where the bone fragment has moved out of its normal position. This type of fracture is classified as a subsequent encounter for an open fracture (type IIIA, IIIB, or IIIC) with malunion, indicating it is a follow-up visit for a previously treated fracture where the bone has healed in an abnormal position. Open fractures involve skin or soft tissue damage, and malunion refers to improper bone alignment during healing.

Causes

Displaced fractures of the greater trochanter commonly result from direct trauma, such as falls or high-impact injuries. They can also occur in individuals with weakened bones due to conditions like osteoporosis, where even minor stress may cause a fracture with displacement. Open fractures (type IIIA, IIIB, or IIIC) may result from the same mechanisms, with the added factor of skin penetration by the fractured bone or associated trauma. Malunion can develop if the initial fracture was not properly aligned or stabilized during treatment.

Risk Factors

• Advanced age, particularly in postmenopausal women with osteoporosis.
• Conditions that weaken bones, such as osteoporosis, cancer, or metabolic disorders.
• History of previous fractures or falls.
• Sedentary lifestyle or limited mobility.
• High-impact activities or trauma exposure.

Symptoms

• Persistent hip or groin pain, often worsened by movement.
• Inability to bear weight on the affected leg.
• Swelling, bruising, or deformity around the hip.
• Leg shortening or external rotation.
• Visible wound or scar from the original open fracture (if present).
• Functional impairment due to malunion, such as altered gait or limited range of motion.

Diagnosis

Physical examination to assess pain, range of motion, and deformity. Imaging studies, including X-rays or CT scans, to confirm the fracture, assess malunion, and evaluate bone healing. Review of prior treatment records to determine the fracture type and history. Assessment of the open wound site (if applicable) for signs of infection or healing.

Treatment Options

• Pain management with analgesics or anti-inflammatory medications.
• Physical therapy to improve mobility, strength, and function.
• Orthopedic evaluation to determine if surgical intervention (e.g., osteotomy, hardware removal) is needed to correct malunion.
• Monitoring for complications, such as infection or nonunion.
• Wound care for any residual open fracture sites.

Prognosis and Follow-Up

Prognosis depends on the severity of malunion, patient age, and overall health. Most patients experience improved function with treatment, but residual pain or mobility issues may persist. Follow-up visits are necessary to monitor healing, assess functional recovery, and adjust treatment plans. Long-term monitoring may be required to address chronic pain or degenerative changes.

Complications

• Chronic pain or discomfort.
• Limited mobility or gait abnormalities.
• Increased risk of future fractures due to weakened bone structure.
• Infection (if open fracture sites are present).
• Nonunion or delayed union of the fracture.
• Arthritis or joint degeneration in the hip.

Lifestyle & Prevention

• Engage in weight-bearing exercises to strengthen bones and improve balance.
• Ensure adequate calcium and vitamin D intake to support bone health.
• Use assistive devices (e.g., canes, walkers) to reduce fall risk, especially in older adults.
• Maintain a healthy weight to minimize stress on bones and joints.
• Avoid high-impact activities that increase fracture risk.

When to Seek Professional Help

• Severe or worsening hip pain that does not improve with rest or medication.
• Inability to bear weight on the affected leg.
• Signs of infection, such as fever, redness, or drainage from a wound.
• New or worsening deformity of the hip or leg.
• Sudden loss of mobility or function.

Tips for Medical Coders

Document the encounter as a subsequent visit for an open fracture (type IIIA, IIIB, or IIIC) with malunion. Ensure the fracture type and malunion are clearly specified in the medical record. Code S72.113R is appropriate when the fracture is of the greater trochanter of an unspecified femur, and the encounter is for follow-up of an open fracture with malunion. Verify that the documentation supports the "subsequent encounter" and "malunion" components to assign the code accurately.