S82.016A Nondisplaced osteochondral fracture of unspecified patella, initial encounter for closed fracture

Name of the Condition

• Nondisplaced osteochondral fracture of unspecified patella, initial encounter for closed fracture

Summary

This condition involves a fracture of the patella (kneecap) where the bone and overlying cartilage are damaged but the fragments remain in their normal position (nondisplaced). The injury is closed, meaning the skin is intact, and it is documented as an initial encounter for treatment. The cartilage involvement distinguishes this from other patellar fractures.

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.
• 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 or MRI may be used to assess cartilage damage or complex fractures.

Treatment Options

• Immobilization with a brace or cast to allow healing.
• Pain management with medications or ice.
• Physical therapy to restore strength and mobility once healing progresses.
• Surgical intervention if the fracture does not heal properly or causes persistent symptoms.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with conservative treatment, but recovery may take several weeks to months. Follow-up appointments monitor healing and functional recovery. Long-term outcomes depend on the extent of cartilage damage and adherence to rehabilitation.

Complications

• Delayed healing or nonunion of the fracture.
• Post-traumatic arthritis due to cartilage damage.
• Chronic pain or stiffness in the knee.
• Reduced range of motion.

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through diet and exercise.
• Avoid sudden, forceful movements that strain the knee.
• Warm up properly before physical activity.

When to Seek Professional Help

Seek immediate care if you experience severe knee pain, inability to bear weight, visible deformity, or signs of infection (e.g., fever, redness). Follow up with a healthcare provider if pain or swelling persists after initial treatment.

Tips for Medical Coders

Document the fracture as nondisplaced and specify it is an initial encounter for a closed fracture. Include details about the patella (unspecified) and confirm no displacement or open wound. Ensure the encounter type (initial) and fracture status (closed) are clearly recorded for accurate coding.