S82.034F Nondisplaced transverse fracture of right patella, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Name of the Condition

• Nondisplaced 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 across the right kneecap (patella), a triangular bone that protects the knee joint. The fracture line runs perpendicular to the bone’s long axis, and the bone fragments remain aligned in their normal position (nondisplaced). The term "subsequent encounter" indicates this is a follow-up visit for the fracture, and "open fracture type IIIA, IIIB, or IIIC" refers to a severe open fracture where the skin is breached, with significant soft tissue damage, contamination, or vascular injury. "Routine healing" confirms the fracture is progressing normally without complications.

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. The open fracture occurs when the trauma also disrupts the overlying skin, leading to exposure of the bone.

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.
• Situations where the knee is exposed to direct force, increasing the likelihood of both fracture and skin penetration.

Symptoms

• Sudden, severe pain in the right 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.
• Open wound over the kneecap (indicating the fracture is open).

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness. Imaging studies, typically X-rays, to confirm the fracture and evaluate bone alignment. Additional tests, such as CT scans or MRI, may be used to assess soft tissue damage or contamination in open fractures. Documentation of the fracture type (IIIA, IIIB, or IIIC) and healing status is critical.

Treatment Options

• Immobilization with a cast or brace to stabilize the knee.
• Pain management with medications.
• Wound care for open fractures to prevent infection.
• Surgical intervention if needed to clean the wound or stabilize the fracture.
• Physical therapy to restore mobility and strength once healing allows.

Prognosis and Follow-Up

With proper treatment, most nondisplaced transverse patellar fractures heal without long-term issues. Routine healing indicates the fracture is progressing as expected. Follow-up visits monitor healing progress, assess for complications, and guide rehabilitation. Full recovery may take several weeks to months, depending on the severity of the injury and treatment.

Complications

• Infection (especially with open fractures).
• Nonunion or delayed healing.
• Arthritis in the knee joint.
• Stiffness or reduced range of motion.
• Nerve or blood vessel damage (more common in severe open fractures).

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., knee pads in sports).
• Maintain bone health with a balanced diet and regular exercise.
• Avoid falls by using assistive devices if needed (e.g., handrails, non-slip footwear).
• Follow post-injury care instructions to support healing.

When to Seek Professional Help

• Severe or worsening pain.
• Increased swelling, redness, or drainage from the wound.
• Fever or signs of infection.
• Inability to bear weight or move the knee.
• Numbness, tingling, or changes in skin color below the knee.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and confirm routine healing to support this code. Include details of the encounter (subsequent) and the open fracture’s severity. Ensure alignment with clinical notes to reflect the nondisplaced nature and healing status.