S72.143M Displaced intertrochanteric fracture of unspecified femur, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

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

Summary

A displaced intertrochanteric fracture is a break in the upper femur, occurring between the greater and lesser trochanters, where bone fragments are misaligned. This type of fracture typically affects the hip region and disrupts normal bone alignment, requiring medical intervention to restore function. The "subsequent encounter" designation indicates this is a follow-up visit for a previously treated fracture, while "open fracture type I or II" refers to a fracture that communicates with the external environment (type I: small wound, type II: larger contaminated wound). The "nonunion" modifier indicates the fracture has failed to heal properly after an expected period.

Causes

These fractures often result from high-impact trauma, such as falls or direct force to the hip. In older adults, weakened bones due to osteoporosis can lead to fractures even with minimal trauma. Open fractures may occur when the broken bone pierces the skin or when trauma causes an external wound. Nonunion can result from inadequate stabilization, poor blood supply to the fracture site, infection, or patient factors like smoking or diabetes.

Risk Factors

• Advanced age, particularly individuals over 65
• Osteoporosis or other bone-weakening conditions
• History of previous fractures or falls
• Sedentary lifestyle or reduced bone density
• High-impact trauma exposure (e.g., motor vehicle accidents)
• Conditions affecting bone healing (e.g., diabetes, smoking)

Symptoms

• Persistent pain in the hip or upper thigh
• Swelling and bruising around the hip
• Inability to bear weight or move the affected leg
• Shortening or abnormal rotation of the leg
• Possible signs of infection (e.g., redness, drainage) if the fracture is open

Diagnosis

Diagnosis involves a physical examination to assess pain, mobility, and deformity. Imaging tests, such as X-rays, are used to confirm the fracture and evaluate displacement. Additional imaging like CT scans or MRI may be ordered for detailed assessment if needed. The presence of nonunion is determined by radiographic evidence of failed healing, such as a persistent fracture line or lack of callus formation. Open fractures are identified by visible wounds or communication with the fracture site.

Treatment Options

• Surgical intervention to realign and stabilize the fracture, often using screws, plates, or rods
• Bone grafting to promote healing in cases of nonunion
• Antibiotics for open fractures to prevent or treat infection
• Physical therapy to restore mobility and strength
• Pain management and wound care for open fractures

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, patient age, and response to treatment. Nonunion may require additional interventions, such as revision surgery or bone stimulation. Follow-up visits are essential to monitor healing, assess for complications, and adjust treatment plans. Long-term outcomes may include reduced mobility or chronic pain if healing is incomplete.

Complications

• Nonunion or delayed union of the fracture
• Infection, particularly with open fractures
• Avascular necrosis (loss of blood supply to the femoral head)
• Malunion (improper healing in a misaligned position)
• Chronic pain or reduced mobility
• Deep vein thrombosis or pulmonary embolism

Lifestyle & Prevention

• Maintain bone health through adequate calcium and vitamin D intake
• Engage in weight-bearing exercise to strengthen bones
• Use assistive devices (e.g., canes, walkers) to prevent falls
• Address osteoporosis with medication or lifestyle changes
• Avoid high-impact activities that increase fracture risk

When to Seek Professional Help

Seek immediate medical attention for severe hip pain, inability to bear weight, or visible wounds near the hip. Follow up with a healthcare provider if pain persists, swelling increases, or signs of infection (e.g., fever, drainage) develop.

Tips for Medical Coders

This code (S72.143M) is used for a displaced intertrochanteric fracture of the unspecified femur during a subsequent encounter for an open fracture type I or II with nonunion. Documentation must specify the fracture type (open I/II), encounter type (subsequent), and the presence of nonunion. Ensure the record includes details about the fracture's status, treatment provided, and any complications to support accurate coding.