S82.154N Nondisplaced fracture of right tibial tuberosity, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

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

Summary

A nondisplaced fracture of the right tibial tuberosity involves a break in the bony prominence on the anterior upper tibia where the patellar tendon attaches, with no misalignment of bone fragments. This is a subsequent encounter for an open fracture classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and a nonunion, where the fracture has failed to heal properly. The tibial tuberosity is critical for knee extension, and this condition may impact functional mobility.

Causes

Traumatic injury is the primary cause, such as direct impact to the knee, falls, or sudden forceful contraction of the quadriceps muscle. Open fractures occur when the injury breaches the skin, exposing the fracture site. Nonunion may result from inadequate initial treatment, poor blood supply, infection, or excessive movement at the fracture site.

Risk Factors

• Participation in high-impact sports (e.g., basketball, soccer)
• Adolescent growth spurts, especially in athletes
• Previous knee injuries or surgeries
• Activities involving sudden stops or jumps
• Poor initial fracture management or delayed treatment

Symptoms

• Persistent localized pain and swelling over the tibial tuberosity
• Difficulty extending the knee or bearing weight
• Visible wound or laceration at the fracture site (for open fractures)
• Bruising or tenderness on palpation
• Possible signs of infection (e.g., redness, drainage) in open fractures

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and functional limitations. Imaging studies, such as X-rays, are used to confirm the fracture and evaluate nonunion. CT or MRI may be employed to assess soft tissue damage and bone healing. Clinical evaluation of the open wound and classification of the fracture type (IIIA, IIIB, or IIIC) is also necessary.

Treatment Options

Treatment focuses on addressing the nonunion and managing the open fracture. This may include surgical intervention to stabilize the fracture, debridement of infected or necrotic tissue, and possible bone grafting. Antibiotics are often required for open fractures to prevent or treat infection. Physical therapy is typically recommended to restore function and strength.

Prognosis and Follow-Up

Prognosis depends on the severity of the open fracture and the success of treatment for nonunion. Complications such as infection or chronic pain may affect recovery. Regular follow-up with imaging and clinical assessments is necessary to monitor healing and adjust treatment as needed.

Complications

• Infection at the fracture site
• Chronic pain or instability
• Delayed or failed healing (nonunion)
• Limited range of motion or functional impairment
• Potential for further injury to the knee

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Use protective gear during sports or activities with fall risks
• Maintain bone health through proper nutrition and exercise
• Follow post-treatment guidelines to support healing

When to Seek Professional Help

Seek immediate medical attention if there is increased pain, swelling, redness, or drainage at the fracture site, as these may indicate infection or complications. Persistent difficulty bearing weight or extending the knee should also prompt evaluation.

Tips for Medical Coders

Document the encounter as a subsequent visit for an open fracture type IIIA, IIIB, or IIIC with nonunion. Include details on the fracture type, nonunion status, and any surgical or therapeutic interventions. Ensure documentation supports the classification of the open fracture and the presence of nonunion to justify the code.