S82.092K Other fracture of left patella, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Other fracture of left patella, subsequent encounter for closed fracture with nonunion

Summary

This condition describes a fracture of the left patella (kneecap) that does not fall into more specific fracture categories. The fracture is closed (skin intact) and has failed to heal (nonunion) during a subsequent encounter for this injury. The term "other" indicates the fracture type is not classified under more detailed subcategories, such as transverse or comminuted fractures.

Causes

Direct trauma to the left 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. Nonunion may result from inadequate immobilization, poor blood supply, or infection.

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.
• Smoking or poor nutrition, which can impair healing.

Symptoms

• Persistent pain in the left knee, especially with movement.
• Swelling and bruising around the kneecap that does not resolve.
• Inability to fully straighten the knee or bear weight.
• Visible deformity or a gap in the kneecap area.
• A "popping" sensation at the time of injury (if recent).

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness. Imaging studies, typically X-rays, to confirm the fracture and evaluate bone alignment. The "other" classification may require detailed documentation of the fracture pattern. Additional tests, such as CT or MRI, may be used to assess nonunion.

Treatment Options

• Immobilization with a cast or brace to stabilize the knee.
• Surgical intervention, such as internal fixation or bone grafting, to promote healing.
• Physical therapy to restore strength and mobility.
• Pain management with medications or injections.
• Monitoring for signs of infection or further complications.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture and the success of treatment. Nonunion may require extended follow-up and additional interventions. Regular imaging and clinical assessments are necessary to monitor healing progress.

Complications

• Chronic pain or stiffness in the knee.
• Arthritis or joint degeneration.
• Infection, especially if surgery is performed.
• Nerve or blood vessel damage.
• Reduced mobility or functional impairment.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use protective gear during sports or high-risk activities.
• Maintain a healthy diet rich in calcium and vitamin D to support bone health.
• Quit smoking, as it can impair healing.
• Follow post-injury rehabilitation plans to restore strength and function.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after a knee injury. Contact your healthcare provider if symptoms worsen or do not improve with treatment, or if you notice signs of infection (e.g., fever, redness, or drainage).

Tips for Medical Coders

Document the fracture type, encounter status (subsequent), and nonunion clearly. Include details about the fracture pattern (e.g., "other") and any contributing factors (e.g., trauma mechanism). Ensure the code aligns with the clinical documentation and encounter type.