S82.151P Displaced fracture of right tibial tuberosity, subsequent encounter for closed fracture with malunion

Name of the Condition

• Displaced fracture of right tibial tuberosity, subsequent encounter for closed fracture with malunion

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 a closed fracture with malunion, meaning the bone fragments have healed in a misaligned position without piercing the skin. Malunion may affect knee function and stability due to altered biomechanics.

Causes

Traumatic injury is the primary cause, such as direct impact to the knee, falls, or sudden forceful contraction of the quadriceps muscle. Sports-related incidents, motor vehicle accidents, or other high-impact events can lead to this fracture. Malunion occurs when the fracture heals in a non-anatomical position, often due to inadequate initial alignment or insufficient immobilization.

Risk Factors

• Participation in activities with rapid knee extension or jumping (e.g., basketball, soccer)
• Adolescent growth spurts, especially in athletes
• Previous knee injuries or surgeries
• Osteoporosis or bone-weakening conditions
• Inadequate initial fracture management or immobilization

Symptoms

• Persistent pain and swelling over the tibial tuberosity
• Limited knee range of motion or difficulty extending the leg
• Visible deformity or abnormal positioning of the knee
• Bruising or discoloration in the affected area
• Altered gait or knee instability

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays, are used to confirm the fracture and evaluate malunion. Additional tests like CT scans may be ordered to assess the extent of misalignment and plan corrective interventions.

Treatment Options

Treatment focuses on managing symptoms and addressing functional impairment. Options may include physical therapy to improve range of motion and strength, orthotic devices for support, or surgical intervention to realign the bone if malunion causes significant disability. Pain management and activity modification are also key components.

Prognosis and Follow-Up

Prognosis depends on the degree of malunion and functional impact. Most patients experience improved symptoms with conservative management, though some may have persistent limitations. Regular follow-up with imaging and clinical assessments helps monitor healing and adjust treatment plans as needed.

Complications

• Chronic pain or discomfort
• Reduced knee function or instability
• Increased risk of future knee injuries
• Arthritis or degenerative changes over time
• Need for surgical correction if malunion is severe

Lifestyle & Prevention

• Avoid high-impact activities that stress the knee until cleared by a provider
• Engage in low-impact exercises to maintain strength and flexibility
• Use proper protective gear during sports or physical activities
• Follow rehabilitation guidelines to optimize healing and function

When to Seek Professional Help

Seek medical attention if you experience worsening pain, new swelling, or difficulty bearing weight. Prompt evaluation is important if you notice increased deformity or loss of knee function, as these may indicate complications requiring intervention.

Tips for Medical Coders

This code is used for a subsequent encounter for a closed fracture of the right tibial tuberosity with malunion. Document the encounter type (subsequent), fracture status (closed), and presence of malunion clearly. Ensure clinical documentation supports the diagnosis and aligns with the code's specificity to avoid billing discrepancies.