S82.144R Nondisplaced bicondylar fracture of right tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Name of the Condition

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

Summary

A nondisplaced bicondylar fracture of the right tibia involves a break in both the lateral and medial condyles of the tibia (shinbone) near the knee joint, where the bone fragments remain in their original alignment. This fracture is classified as an open fracture type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and contamination, and is associated with malunion (healing in an abnormal position). The injury affects the weight-bearing surface of the tibia and may involve the knee joint, requiring ongoing management to address both the fracture and soft tissue complications.

Causes

High-energy trauma such as motor vehicle accidents, falls from significant heights, or severe sports injuries that exert force on the knee joint. Penetrating injuries or direct blows to the knee may also result in this fracture. Open fractures occur when the trauma disrupts both the bone and the overlying skin, while malunion develops if the fracture heals improperly, often due to inadequate initial treatment or poor bone healing.

Risk Factors

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

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
• Limited range of motion or stiffness
• Visible wound or soft tissue damage (for open fractures)
• Deformity or misalignment of the knee (due to malunion)

Diagnosis

Diagnosis is confirmed through a combination of physical examination and imaging studies. A physical exam assesses pain, swelling, and deformity, while X-rays or CT scans evaluate the fracture alignment and malunion. For open fractures, wound assessment determines the type (IIIA, IIIB, or IIIC) based on soft tissue damage and contamination. Additional tests may include blood work to check for infection or bone healing markers.

Treatment Options

Treatment focuses on managing the open fracture and malunion. For open fractures, surgical debridement (cleaning) and wound care are critical to prevent infection. Malunion may require surgical realignment or fixation to restore proper bone position. Rehabilitation, including physical therapy, helps improve mobility and strength. Antibiotics and pain management are often necessary, with ongoing monitoring for complications.

Prognosis and Follow-Up

Prognosis depends on the severity of the open fracture and malunion. Open fractures carry a higher risk of infection and delayed healing, while malunion may lead to long-term joint dysfunction. Regular follow-up with imaging and physical exams is essential to monitor healing and adjust treatment. Recovery may take several months, with some patients requiring ongoing therapy or surgical intervention.

Complications

• Infection (especially with open fractures)
• Delayed or nonunion of the fracture
• Chronic pain or joint instability
• Arthritis or degenerative changes in the knee
• Nerve or blood vessel damage
• Limited mobility or functional impairment

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Use protective gear during sports or high-risk activities
• Maintain bone health through diet and exercise
• Follow post-treatment instructions to support healing
• Attend all follow-up appointments to monitor progress

When to Seek Professional Help

Seek immediate medical attention if you experience:

• Severe pain, swelling, or deformity after an injury
• Open wound near the knee with bone exposure
• Inability to move the leg or bear weight
• Signs of infection (redness, pus, fever)
• Worsening pain or new symptoms during recovery

Tips for Medical Coders

This code (S82.144R) is used for a subsequent encounter of a nondisplaced bicondylar fracture of the right tibia with an open fracture type IIIA, IIIB, or IIIC and malunion. Documentation must specify the fracture type, malunion, and that this is a subsequent encounter (not initial). Ensure the record includes details on the fracture's alignment, soft tissue involvement, and any prior treatments to support accurate coding.