S82.151N Displaced fracture of right tibial tuberosity, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Displaced fracture of right tibial tuberosity, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Summary

A displaced fracture of the right tibial tuberosity involves a break in the bony prominence on the anterior upper tibia where the patellar tendon attaches. This specific ICD code refers to a subsequent encounter for an open fracture (types IIIA, IIIB, or IIIC) with nonunion, meaning the fracture has failed to heal properly after an initial injury. Open fractures involve the bone piercing the skin or being exposed, and nonunion indicates a lack of progress in bone healing over time.

Causes

Traumatic injury is the primary cause, such as direct impact to the knee, falls, or sudden forceful contraction of the quadriceps muscle. High-energy trauma, including motor vehicle accidents or sports-related incidents, can lead to open fractures. Nonunion may result from inadequate initial treatment, poor blood supply to the fracture site, infection, or excessive movement during healing.

Risk Factors

• Participation in high-impact activities or contact sports (e.g., basketball, soccer)
• Adolescent growth spurts, which can weaken the growth plate
• Previous knee injuries or surgeries affecting bone healing
• Conditions that impair circulation or bone health (e.g., diabetes, smoking)
• Open fractures, particularly types IIIA, IIIB, or IIIC, which carry a higher risk of complications like infection

Symptoms

• Persistent pain and swelling over the tibial tuberosity
• Inability to fully extend the knee or bear weight on the affected limb
• Visible deformity or abnormal positioning of the knee
• Bruising or discoloration in the affected area
• Open wound or exposed bone (in cases of open fracture)
• Signs of nonunion, such as persistent pain or lack of healing over months

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays, are used to confirm the fracture, evaluate displacement, and assess for nonunion. CT scans may provide detailed views of the fracture site, while MRI can assess soft tissue damage or infection. Laboratory tests, including blood work, may be ordered to check for infection or healing markers.

Treatment Options

Treatment focuses on stabilizing the fracture, promoting healing, and managing complications. Surgical intervention, such as internal fixation with plates or screws, may be required to realign the bone and address nonunion. Open fractures often necessitate wound debridement and antibiotic therapy to prevent infection. Physical therapy is typically recommended to restore knee function and strength once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the presence of complications. Nonunion may require additional interventions, such as bone grafting or revision surgery. Regular follow-up with imaging studies is essential to monitor healing. Long-term outcomes may include residual pain, limited mobility, or the need for ongoing rehabilitation.

Complications

• Infection, particularly with open fractures
• Nonunion or delayed healing
• Chronic pain or arthritis in the knee
• Nerve or blood vessel damage
• Reduced range of motion or muscle weakness
• Need for additional surgeries

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Follow prescribed rehabilitation exercises to strengthen the knee
• Use protective gear during sports or activities with fall risks
• Maintain a healthy diet rich in calcium and vitamin D to support bone health
• Quit smoking, as it impairs bone healing

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or an open wound after a knee injury. Contact your healthcare provider if you notice persistent pain, inability to bear weight, or signs of infection (e.g., fever, redness, drainage) during recovery.

Tips for Medical Coders

This code is specific to a subsequent encounter for an open fracture (types IIIA, IIIB, or IIIC) with nonunion of the right tibial tuberosity. Documentation must clearly indicate the fracture type, encounter stage (subsequent), and the presence of nonunion. Ensure the record specifies the right tibial tuberosity and confirms the open fracture classification to support accurate coding.