S82.031F Displaced transverse fracture of right patella, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Name of the Condition

• Displaced transverse fracture of right patella, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Summary

This condition involves a horizontal break in the right kneecap (patella) where the bone fragments are displaced. The fracture is classified as an open injury (type IIIA, IIIB, or IIIC), meaning the skin is broken, and this is a subsequent encounter for treatment. The healing process is routine, indicating no significant complications or delayed union. The patella, a triangular bone protecting the knee joint, is fractured transversely, with the break running perpendicular to its long axis.

Causes

Direct trauma to the right knee, such as a high-impact blow, fall, or forceful muscle contraction. Open fractures may result from injuries where the bone pierces the skin or from external objects penetrating the knee area. The subsequent encounter indicates ongoing care after the initial injury and treatment.

Risk Factors

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

Symptoms

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

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness, with attention to open wounds. 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. Documentation should specify the open fracture type (IIIA, IIIB, or IIIC) and routine healing status.

Treatment Options

• Wound care to manage the open fracture and prevent infection.
• Immobilization with a cast or brace to stabilize the knee.
• Pain management with medications.
• Physical therapy to restore mobility and strength once healing allows.
• Surgical intervention may be required if the fracture is unstable or does not heal properly.

Prognosis and Follow-Up

With routine healing, most patients recover fully, though some may experience residual stiffness or weakness. Follow-up care includes monitoring for infection, assessing fracture alignment, and guiding rehabilitation. Return to normal activities depends on the severity of the injury and adherence to treatment.

Complications

• Infection at the open wound site.
• Nonunion or malunion of the fracture.
• Chronic pain or stiffness in the knee.
• Nerve or blood vessel damage from the initial injury.

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through diet and exercise.
• Avoid falls by using assistive devices if needed.
• Follow post-injury care instructions to support healing.

When to Seek Professional Help

• Increased pain, swelling, or redness around the knee.
• Signs of infection, such as fever or pus.
• Inability to bear weight or move the knee.
• New or worsening deformity.

Tips for Medical Coders

Document the open fracture type (IIIA, IIIB, or IIIC) and routine healing status clearly. Ensure the encounter is coded as subsequent, reflecting ongoing care after the initial injury. Verify that the fracture is displaced and transverse, and specify the right patella. Documentation should support the open fracture classification and routine healing to justify the code.