S82.015D Nondisplaced osteochondral fracture of left patella, subsequent encounter for closed fracture with routine healing

Name of the Condition

• Nondisplaced osteochondral fracture of left patella, subsequent encounter for closed fracture with routine healing

Summary

This condition involves a fracture of the left patella (kneecap) where a portion of the bone and its attached cartilage is damaged but remains in its normal anatomical position. The injury affects both bony and cartilaginous structures, and the lack of displacement distinguishes it from other patellar fractures. The "subsequent encounter" designation indicates this is a follow-up visit for the injury, while "closed fracture with routine healing" confirms the skin is intact and the fracture is progressing normally without complications.

Causes

Direct trauma to the left knee, such as a fall onto the kneecap, a forceful blow, or a high-impact injury (e.g., motor vehicle accident or sports injury). The fracture occurs when the force is sufficient to damage the bone and cartilage but not enough to separate the fragment from the main patella.

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 left knee (initial injury).
• Swelling and bruising around the kneecap.
• Inability to straighten or bear weight on the left knee (initial injury).
• A "popping" sensation at the time of injury (initial injury).
• Residual mild pain or stiffness during follow-up (subsequent encounter).

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness. Imaging studies, typically X-rays, to confirm the fracture and evaluate bone alignment. CT or MRI may be used to assess cartilage damage or confirm healing status. The "subsequent encounter" context implies prior documentation of the initial injury and treatment.

Treatment Options

• Immobilization with a brace or cast to support healing.
• Pain management with over-the-counter or prescription medications.
• Physical therapy to restore range of motion and strength.
• Weight-bearing restrictions as advised by a healthcare provider.
• Monitoring for signs of delayed healing or complications.

Prognosis and Follow-Up

Most nondisplaced fractures heal with conservative management, and routine healing is expected. Follow-up visits ensure proper recovery, with gradual return to normal activities as tolerated. Full recovery may take several weeks to months, depending on the injury severity and adherence to treatment.

Complications

• Delayed union or nonunion of the fracture.
• Post-traumatic arthritis due to cartilage damage.
• Chronic pain or stiffness in the knee.
• Re-fracture if the knee is reinjured before full healing.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., knee pads in sports).
• Maintain bone health through adequate calcium and vitamin D intake.
• Avoid sudden, forceful movements that stress the knee.
• Gradually resume physical activity under medical guidance after injury.

When to Seek Professional Help

• Increased pain, swelling, or bruising that worsens over time.
• Inability to bear weight on the left knee.
• Signs of infection (e.g., redness, warmth, fever).
• Numbness or tingling in the leg or foot.
• Persistent instability or locking of the knee joint.

Tips for Medical Coders

This code is used for a subsequent encounter for a closed, nondisplaced osteochondral fracture of the left patella with routine healing. Documentation should confirm the fracture type (nondisplaced, osteochondral), laterality (left), encounter type (subsequent), and healing status (routine). Ensure the record specifies the fracture is closed and healing without complications to support this code.