S72.464E Nondisplaced supracondylar fracture with intracondylar extension of lower end of right femur, subsequent encounter for open fracture type I or II with routine healing

Name of the Condition

• Nondisplaced supracondylar fracture with intracondylar extension of lower end of right femur, subsequent encounter for open fracture type I or II with routine healing

Summary

This condition involves a fracture at the distal (lower) end of the right femur, specifically extending from the supracondylar region (above the condyles) into the intracondylar area (within the condyles). The fracture disrupts the structural integrity of the knee joint, potentially affecting stability and function. The pattern involves both the metaphyseal region above the condyles and the articular surface of the condyles themselves, with the bone fragments remaining aligned. The fracture is classified as open (type I or II), indicating a break in the skin with minimal contamination or a small wound from the bone protruding. The term "subsequent encounter" denotes follow-up care after the initial treatment phase, and "routine healing" indicates the fracture is progressing without complications.

Causes

High-impact trauma, such as falls, motor vehicle accidents, or direct force to the knee. Sports injuries involving sudden twisting or axial loading. Low-energy trauma in individuals with weakened bone density may also result in this fracture pattern. Open fractures typically occur when the force causing the injury also breaks the skin, allowing exposure of the fracture site.

Risk Factors

• Advanced age and associated bone density loss.
• Osteoporosis or other metabolic bone disorders.
• Participation in high-risk activities or contact sports.
• Prior history of knee or femur injuries.
• Conditions affecting bone strength, such as chronic steroid use.

Symptoms

• Mild to moderate knee pain and swelling, which may decrease over time.
• Bruising or residual skin changes around the knee.
• Possible limited range of motion or stiffness.
• No visible deformity if the fracture remains nondisplaced.
• Minimal or no drainage from the previous open wound site.

Diagnosis

Diagnosis is confirmed through clinical evaluation and imaging studies, typically X-rays or CT scans, to assess fracture alignment and healing progress. The provider will review the patient’s history, including the initial injury and treatment, to determine the fracture’s current status. Physical examination focuses on knee stability, range of motion, and signs of infection or delayed healing.

Treatment Options

Treatment may include immobilization with a brace or cast to support healing, physical therapy to restore strength and mobility, and monitoring for complications. Follow-up care ensures the fracture heals properly, with adjustments to the treatment plan as needed. Pain management and wound care for the previous open fracture site are also part of the regimen.

Prognosis and Follow-Up

With routine healing, the prognosis is generally favorable, though full recovery may take several months. Follow-up appointments are scheduled to assess healing through imaging and clinical evaluation. The provider will monitor for signs of delayed union, malunion, or infection, adjusting the care plan accordingly.

Complications

• Delayed or incomplete healing (nonunion).
• Malalignment of the fracture fragments.
• Infection at the previous open wound site.
• Post-traumatic arthritis due to joint involvement.
• Reduced range of motion or chronic pain.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a provider.
• Engage in low-impact exercises (e.g., swimming) to maintain mobility.
• Use protective gear during sports or activities with fall risk.
• Ensure adequate calcium and vitamin D intake to support bone health.
• Follow the provider’s recommendations for weight-bearing and activity restrictions.

When to Seek Professional Help

Seek care if you experience increasing pain, swelling, or redness; fever or signs of infection; new deformity; or difficulty bearing weight. Contact your provider if the knee becomes unstable or if you notice changes in sensation or circulation.

Tips for Medical Coders

Document the fracture type (open I or II), the encounter type (subsequent), and evidence of routine healing. Include details on the fracture’s location (right femur, supracondylar with intracondylar extension) and any follow-up imaging or clinical notes confirming healing progress. Ensure the open fracture classification and subsequent encounter are clearly supported by the record.