S82.855A Nondisplaced trimalleolar fracture of left lower leg, initial encounter for closed fracture

Name of the Condition

• Nondisplaced trimalleolar fracture of left lower leg, initial encounter for closed fracture
• ICD-10 Code: S82.855A

Summary

A nondisplaced trimalleolar fracture of the left lower leg involves a break in all three malleoli (medial, lateral, and posterior) of the ankle joint, with bone fragments remaining in their normal alignment. This injury typically results from high-impact trauma and may require immobilization or surgical intervention to restore joint stability. The fracture disrupts the ankle's structural integrity, affecting weight-bearing and mobility.

Causes

Trimalleolar fractures commonly result from severe trauma, such as falls from height, motor vehicle accidents, or sports-related impacts. Twisting injuries or direct force to the ankle can also cause this type of fracture, which involves multiple bony components of the joint.

Risk Factors

• Participation in high-impact sports or activities with fall risks.
• Advanced age, leading to reduced bone density.
• Osteoporosis or other bone-weakening conditions.
• Previous ankle injuries or joint instability.

Symptoms

• Intense pain, swelling, and bruising around the ankle.
• Inability to bear weight on the affected leg.
• Visible deformity or misalignment of the ankle joint.
• Tenderness, instability, or numbness in the foot or ankle.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and deformity. Imaging tests, such as X-rays or CT scans, are used to confirm the fracture and evaluate alignment. The "closed" nature of the fracture (no skin break) is noted during assessment.

Treatment Options

Treatment depends on fracture stability and may include immobilization with a cast or brace, pain management, and physical therapy. Surgical intervention may be required if the fracture is unstable or involves joint displacement. Follow-up imaging ensures proper healing.

Prognosis and Follow-Up

Prognosis is generally favorable with appropriate treatment, though recovery may take several months. Follow-up appointments monitor healing, alignment, and functional recovery. Physical therapy helps restore strength and mobility.

Complications

Potential complications include delayed union or nonunion, arthritis, nerve damage, or chronic instability. Infection risk is low for closed fractures but may increase with surgical intervention.

Lifestyle & Prevention

Avoid high-impact activities until cleared by a healthcare provider. Strengthen ankle muscles and use proper footwear to reduce fall risk. Maintain bone health through diet and exercise to prevent future fractures.

When to Seek Professional Help

Seek immediate care for severe pain, swelling, or inability to bear weight. Contact a provider if symptoms worsen or new numbness/tingling occurs, as these may indicate complications.

Tips for Medical Coders

Document the fracture's nondisplaced status, left leg involvement, and closed nature (no skin breach). Include details of the initial encounter and any imaging or treatment provided. Ensure alignment with clinical notes to support code specificity.