S82.424N Nondisplaced transverse fracture of shaft of right fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Nondisplaced transverse fracture of shaft of right fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
• ICD-10 Code: S82.424N

Summary

A nondisplaced transverse fracture of the shaft of the right fibula is a break in the long, thin bone on the lateral side of the lower leg, where the fracture line runs horizontally across the middle portion of the bone. The bone fragments remain in their normal anatomical alignment, and the fracture is classified as open (type IIIA, IIIB, or IIIC) with nonunion, indicating the fracture site has not healed after a previous encounter. This is a subsequent encounter, meaning it represents follow-up care for the established injury.

Causes

Most commonly caused by direct trauma or high-impact forces to the leg, such as falls, sports injuries, or motor vehicle accidents. Open fractures occur when the broken bone pierces the skin or when external force causes a wound that communicates with the fracture site. Nonunion may result from inadequate initial treatment, poor blood supply, infection, or excessive movement at the fracture site.

Risk Factors

• Participation in contact sports or high-impact activities.
• Osteoporosis or reduced bone density, which increases fragility.
• Advanced age, which may weaken bone strength.
• Previous leg injuries or surgeries.
• Situations with a high risk of skin penetration, such as falls onto sharp objects.
• Factors that impair healing, such as smoking, diabetes, or poor nutrition.

Symptoms

• Persistent pain and swelling in the lower leg.
• Difficulty bearing weight on the affected leg.
• Bruising or tenderness around the injured area.
• Possible deformity or instability of the leg structure.
• Signs of infection, such as redness, warmth, or drainage (in open fractures).
• Lack of healing progress over time (nonunion).

Diagnosis

Diagnosis involves a physical examination by a healthcare professional to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays, are typically used to confirm the fracture, determine its extent, and evaluate for nonunion. Additional tests, like CT scans or MRIs, may be used to assess bone healing or detect infection. Documentation of the fracture type (IIIA, IIIB, or IIIC) and nonunion status is critical for accurate coding.

Treatment Options

Treatment may include surgical intervention to stabilize the fracture, such as internal fixation with plates or screws, and addressing any infection or nonunion. Antibiotics may be prescribed for open fractures to prevent or treat infection. Physical therapy is often recommended to restore function and strength. In some cases, bone grafting or other procedures may be necessary to promote healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the presence of infection, and the success of treatment. Nonunion may require additional interventions, and recovery time can be extended. Regular follow-up appointments are necessary to monitor healing and adjust treatment plans. Long-term outcomes may include residual pain, limited mobility, or the need for ongoing care.

Complications

• Infection at the fracture site (especially in open fractures).
• Nonunion or delayed healing.
• Nerve or blood vessel damage.
• Chronic pain or arthritis.
• Limited mobility or functional impairment.
• Need for additional surgeries.

Lifestyle & Prevention

• Avoid high-impact activities that increase fracture risk.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Use protective equipment during sports or activities.
• Quit smoking, as it impairs bone healing.
• Follow post-treatment guidelines to promote recovery.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after an injury. Contact a healthcare provider if you notice signs of infection, such as redness, warmth, or drainage, or if pain persists or worsens over time. Follow up with your provider if you have concerns about healing progress.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and nonunion status clearly. Ensure the encounter is coded as "subsequent" to reflect follow-up care. Verify that the right fibula and transverse fracture details are accurately recorded. Include any relevant clinical notes to support the diagnosis and treatment provided.