S82.454Q Nondisplaced comminuted fracture of shaft of right fibula, subsequent encounter for open fracture type I or II with malunion

Name of the Condition

• Nondisplaced comminuted fracture of shaft of right fibula, subsequent encounter for open fracture type I or II with malunion
• ICD-10 Code: S82.454Q

Summary

A nondisplaced comminuted fracture of the shaft of the right fibula is a break in the long, slender bone of the lower leg where the bone is shattered into multiple pieces but the fragments remain in their original alignment. This fracture is classified as an open fracture type I or II, meaning the skin was breached during the injury with minimal soft tissue damage. The "subsequent encounter" designation indicates this is a follow-up visit for treatment, and "malunion" refers to the fracture healing in a non-anatomical position.

Causes

This fracture typically results from direct trauma or high-impact force to the leg, such as falls, motor vehicle accidents, or sports injuries. The comminution (shattering into multiple pieces) occurs due to significant force, while the nondisplaced nature suggests the fragments did not shift out of position. Open fracture types I or II indicate the skin was breached during the injury, and malunion develops when the fracture heals improperly over time.

Risk Factors

• Participation in high-impact or contact sports
• Osteoporosis or conditions that weaken bone density
• Advanced age, which may reduce bone strength
• Previous leg injuries or surgeries
• Inadequate initial fracture management or immobilization

Symptoms

• Persistent pain and tenderness along the right fibula
• Swelling and bruising around the lower leg
• Difficulty bearing weight on the affected leg
• Visible or palpable deformity at the fracture site
• Limited range of motion in the ankle or knee

Diagnosis

Diagnosis involves a physical examination to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays, are typically used to confirm the fracture, evaluate healing status, and identify malunion. CT scans may be ordered to assess the extent of bone fragmentation and alignment. Clinical documentation must specify the open fracture type (I or II) and the presence of malunion to support the code.

Treatment Options

Treatment focuses on managing pain, promoting proper healing, and addressing malunion. Options may include pain management, physical therapy to restore function, and possibly surgical intervention to realign the bone if malunion causes functional impairment. Follow-up care is essential to monitor healing and adjust treatment as needed.

Prognosis and Follow-Up

Prognosis depends on the severity of malunion and the patient’s overall health. Most patients recover with appropriate treatment, but malunion may lead to long-term functional limitations or chronic pain. Regular follow-up appointments are necessary to assess healing, evaluate mobility, and determine if additional interventions are required.

Complications

• Chronic pain or discomfort
• Limited mobility or joint stiffness
• Increased risk of future fractures
• Nerve or vascular damage (rare)
• Infection (if open fracture was present)

Lifestyle & Prevention

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

When to Seek Professional Help

Seek immediate medical attention if you experience:

• Severe or worsening pain
• Increased swelling, redness, or drainage from the injury site
• Signs of infection (fever, chills)
• Sudden loss of function in the leg or foot
• New or worsening deformity

Tips for Medical Coders

Document the fracture type (open I or II), the presence of malunion, and the subsequent encounter status clearly in the medical record. Ensure the code S82.454Q is used only when the fracture is nondisplaced, comminuted, involves the right fibula shaft, and meets the criteria for a subsequent encounter with malunion. Verify that all components of the code are supported by clinical documentation to ensure accurate coding.