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

Name of the Condition

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

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 (type I) or there is a wound extending to the fracture site with minimal soft tissue damage (type II). The "subsequent encounter" designation indicates this is a follow-up visit for treatment, and "nonunion" signifies that the fracture has not healed properly within the expected timeframe.

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. Nonunion may develop due to inadequate immobilization, poor blood supply, infection, or other factors that impede healing.

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
• Smoking or poor nutrition, which can impair healing
• Inadequate initial treatment 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
• Possible deformity or instability of the leg structure
• Delayed healing or lack of progress in fracture recovery

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 and determine the number of bone fragments, alignment, and signs of nonunion. Additional tests, like CT scans or MRI, may be ordered to evaluate soft tissue damage or assess blood supply to the bone. The open fracture classification (type I or II) is determined based on the extent of skin and soft tissue injury.

Treatment Options

Treatment focuses on promoting healing and addressing nonunion. Options may include immobilization with a cast or brace, surgical intervention (e.g., bone grafting, internal fixation), or external fixation devices. Antibiotics may be prescribed if infection is present. Physical therapy is often recommended to restore strength and mobility once healing progresses. Follow-up imaging is used to monitor healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the patient’s overall health. Nonunion may require additional interventions, and recovery can take several months. Regular follow-up appointments are necessary to assess healing and adjust treatment plans. Long-term outcomes may include residual pain or limited mobility, depending on the extent of the injury and response to treatment.

Complications

• Nonunion or delayed healing
• Infection at the fracture site
• Nerve or blood vessel damage
• Chronic pain or instability
• Limited range of motion or mobility
• Need for additional surgeries

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Follow prescribed immobilization and weight-bearing restrictions
• Maintain a balanced diet rich in calcium and vitamin D to support bone health
• Quit smoking, as it impairs healing
• Use protective equipment during sports or activities to reduce injury risk

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 (e.g., fever, chills)
• Numbness, tingling, or weakness in the leg or foot
• Difficulty bearing weight or walking

Tips for Medical Coders

When coding S82.454M, ensure documentation supports:

• Nondisplaced comminuted fracture of the right fibula shaft
• Open fracture type I or II (skin breach with minimal soft tissue damage)
• Subsequent encounter (follow-up visit, not initial treatment)
• Nonunion (failure of the fracture to heal within the expected timeframe)
• Laterality (right fibula) and anatomical site (shaft)
• Clear differentiation from other fracture types or encounters to avoid miscoding.