S82.036D Nondisplaced transverse fracture of unspecified patella, subsequent encounter for closed fracture with routine healing

Name of the Condition

• Nondisplaced transverse fracture of unspecified patella, subsequent encounter for closed fracture with routine healing

Summary

This condition involves a horizontal break across the kneecap (patella) where the bone fragments remain aligned and the fracture is closed (skin intact). The fracture line runs perpendicular to the bone’s long axis, and the lack of displacement indicates stability. This is a subsequent encounter, meaning the fracture is in a healing phase with routine progress, and no complications are reported.

Causes

Direct trauma to the knee, such as a fall onto the kneecap, a blow from an object, or a forceful contraction of the quadriceps muscle. High-impact injuries, like those from sports or motor vehicle accidents, are common triggers.

Risk Factors

• Participation in activities with a high risk of knee injury, such as contact sports or skiing.
• Osteoporosis or other bone-weakening conditions.
• Previous knee injuries or surgeries.
• Advanced age, which may reduce bone density.

Symptoms

• Sudden, severe pain in the knee.
• Swelling and bruising around the kneecap.
• Inability to straighten the knee or bear weight.
• Visible deformity or a gap in the kneecap area.
• A "popping" sensation at the time of injury.

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness. Imaging studies, typically X-rays, to confirm the fracture and evaluate bone alignment. In some cases, a CT scan may be used to assess complex fractures or displacement.

Treatment Options

• Conservative management: Immobilization with a cast or brace, pain management, and physical therapy to restore function.
• Surgical intervention: Rarely required for nondisplaced fractures, but may be considered if alignment is compromised.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with conservative treatment. Follow-up care includes monitoring for healing progress, gradual weight-bearing as tolerated, and physical therapy to strengthen the knee. Routine healing is expected, with full recovery typically occurring within 6–12 weeks.

Complications

• Delayed healing or nonunion.
• Arthritis in the knee joint.
• Persistent pain or stiffness.
• Infection (rare, if surgical intervention is performed).

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through diet and exercise.
• Avoid falls by using assistive devices if needed.
• Strengthen knee muscles to improve stability.

When to Seek Professional Help

Seek immediate care if you experience severe pain, inability to bear weight, visible deformity, or signs of infection (e.g., fever, redness, drainage).

Tips for Medical Coders

Document the encounter as a subsequent visit for a closed fracture with routine healing. Ensure clinical notes specify the fracture is nondisplaced, transverse, and of the patella, with no complications or delayed healing. The code S82.036D is appropriate for this scenario.