S82.301M Unspecified fracture of lower end of right tibia, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Unspecified fracture of lower end of right tibia, subsequent encounter for open fracture type I or II with nonunion

Summary

This condition involves a fracture at the lower end of the right tibia, a major weight-bearing bone in the lower leg. The fracture is open (type I or II) and has not healed (nonunion), requiring subsequent medical attention. Open fractures involve a break in the skin, increasing infection risk, while nonunion indicates the bone has failed to unite after an expected healing period. The lower tibia is part of the ankle joint, so injuries here can impact mobility and function.

Causes

Fractures of the lower tibia typically result from direct trauma, such as falls, sports injuries, or motor vehicle accidents. High-impact forces or twisting motions can also cause these injuries. Underlying bone weakness from conditions like osteoporosis may increase susceptibility. Nonunion may occur due to inadequate immobilization, poor blood supply, infection, or severe initial injury.

Risk Factors

• Participation in high-impact sports or activities with a risk of falls
• Osteoporosis or other bone-weakening conditions
• Advanced age, which can reduce bone density
• Previous lower leg fractures or related injuries
• Poor nutrition or smoking, which can impair bone healing

Symptoms

• Persistent pain and tenderness localized to the lower leg or ankle
• Swelling and bruising around the affected area
• Difficulty bearing weight or walking
• Possible visible deformity or instability
• Open wound at the fracture site (for type I or II open fractures)
• Lack of healing progress over time

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays or CT scans, are used to confirm the fracture and evaluate for nonunion. The presence of an open wound and its classification (type I or II) is documented. Additional tests may assess bone healing or infection risk.

Treatment Options

Treatment focuses on stabilizing the fracture, promoting healing, and managing the open wound. Options may include surgical intervention (e.g., internal fixation, bone grafting) to address nonunion, wound care to prevent infection, and immobilization (e.g., casting or bracing). Antibiotics may be used if infection is present. Physical therapy may aid recovery once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, adherence to treatment, and overall health. Nonunion may require extended recovery or additional procedures. Follow-up appointments monitor healing progress, assess for complications, and adjust treatment as needed. Long-term mobility and function depend on successful bone union and rehabilitation.

Complications

• Infection at the fracture site or open wound
• Persistent nonunion requiring further intervention
• Chronic pain or instability
• Limited mobility or arthritis in the ankle joint
• Nerve or vascular damage from the initial injury

Lifestyle & Prevention

• Use protective gear during high-impact activities
• Maintain bone health through adequate nutrition (e.g., calcium, vitamin D)
• Avoid smoking, which impairs bone healing
• Follow post-injury care instructions to support recovery
• Seek prompt treatment for fractures to reduce nonunion risk

When to Seek Professional Help

Seek immediate care if there is severe pain, swelling, or an open wound at the fracture site. Contact a healthcare provider if symptoms worsen, or if there is no improvement in healing over time. Prompt evaluation is important for managing open fractures and addressing nonunion.

Tips for Medical Coders

This code (S82.301M) is used for a subsequent encounter for an open fracture type I or II of the lower right tibia with nonunion. Documentation must specify the fracture type (open, type I or II), the encounter type (subsequent), and the nonunion status. Ensure the record supports the open wound classification and confirms the fracture has not healed.