S82.142R Displaced bicondylar fracture of left tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Name of the Condition

• Displaced bicondylar fracture of left tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Summary

A displaced bicondylar fracture of the left tibia involves a break in both the lateral and medial condyles of the tibia (shinbone) near the knee joint, with the bone fragments misaligned. This fracture is classified as an open fracture type IIIA, IIIB, or IIIC, indicating significant soft tissue damage, and is associated with malunion, where the bone heals in a non-anatomic position. The injury affects the weight-bearing surface of the tibia and may involve damage to surrounding soft tissues.

Causes

High-energy trauma such as motor vehicle accidents, falls from significant heights, or severe sports injuries that exert force on the knee joint are common causes. Penetrating injuries or direct blows to the knee can also result in this type of fracture.

Risk Factors

• Participation in high-impact sports or activities with a risk of falls
• Osteoporosis or other conditions that weaken bone density
• Advanced age, which may reduce bone strength
• Previous knee injuries or surgeries that compromise joint stability

Symptoms

• Intense pain localized to the knee, particularly with weight-bearing
• Swelling, bruising, or tenderness around the knee joint
• Inability to bear weight on the affected leg
• Visible deformity or instability of the knee in severe cases
• Open wound or laceration at the fracture site
• Malunion-related symptoms, such as persistent pain or altered joint mechanics

Diagnosis

Diagnosis is confirmed through a combination of physical examination and imaging studies. A physical exam assesses pain, swelling, deformity, and wound characteristics. Imaging typically includes X-rays to evaluate fracture alignment and malunion, and CT scans may be used to assess the extent of soft tissue damage and bone healing. Clinical correlation with the open fracture classification (IIIA, IIIB, or IIIC) is essential.

Treatment Options

Treatment focuses on managing the open fracture and addressing malunion. This may include surgical intervention to clean the wound, stabilize the fracture (e.g., internal fixation), and correct malalignment. Antibiotics and wound care are critical to prevent infection. Postoperative rehabilitation, including physical therapy, is often necessary to restore function.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, soft tissue damage, and success of treatment. Malunion may lead to long-term joint dysfunction or pain. Follow-up care involves regular imaging to monitor healing and functional assessments to guide rehabilitation. Complications such as infection or arthritis may require ongoing management.

Complications

• Infection, particularly with open fractures
• Nonunion or delayed union of the fracture
• Post-traumatic arthritis due to joint damage
• Chronic pain or instability
• Nerve or vascular injury from the initial trauma
• Malunion-related functional limitations

Lifestyle & Prevention

• Avoid high-risk activities that may lead to trauma
• Maintain bone health through adequate nutrition (e.g., calcium, vitamin D)
• Use protective equipment during sports or high-risk occupations
• Follow post-injury rehabilitation protocols to optimize recovery

When to Seek Professional Help

Seek immediate medical attention for severe knee pain, inability to bear weight, visible deformity, or open wounds. Follow up with a healthcare provider if symptoms worsen, or if there is persistent pain, swelling, or difficulty moving the knee after initial treatment.

Tips for Medical Coders

This code (S82.142R) is used for a subsequent encounter of a displaced bicondylar fracture of the left tibia with an open fracture type IIIA, IIIB, or IIIC and malunion. Documentation should specify the fracture type, presence of malunion, and that this is a subsequent encounter. Ensure alignment with clinical notes and imaging reports to confirm the open fracture classification and malunion status.