S82.035F Nondisplaced transverse fracture of left patella, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Name of the Condition

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

Summary

This condition involves a horizontal break across the left 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 fracture is open (exposing the bone to the external environment) and classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage. This is a subsequent encounter, meaning the patient is receiving follow-up care after initial treatment, and healing is progressing as expected 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 breaks the skin, allowing the fracture site to communicate with the external environment. Type IIIA, IIIB, or IIIC indicates increasing severity of soft tissue damage, such as extensive laceration, muscle loss, or vascular injury.

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.
• Conditions that impair wound healing, such as diabetes or peripheral vascular disease.

Symptoms

• Persistent but improving pain in the left knee.
• Swelling and bruising around the kneecap, gradually reducing.
• Gradual return of knee movement and ability to bear weight.
• Visible or palpable signs of healing at the fracture site.
• Possible residual soft tissue changes from the open fracture (e.g., scarring).

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness, focusing on signs of routine healing. Imaging studies, typically X-rays, to confirm fracture alignment and assess bone healing. Clinical evaluation of the open fracture site for signs of infection or delayed healing. Review of prior treatment records to confirm the fracture type and encounter status.

Treatment Options

• Monitoring of fracture healing through regular follow-up visits.
• Pain management with analgesics or anti-inflammatory medications.
• Physical therapy to restore knee strength and range of motion.
• Wound care for the open fracture site, if residual soft tissue changes remain.
• Activity modification to avoid re-injury during the healing phase.

Prognosis and Follow-Up

With routine healing, most patients recover full knee function over time. Follow-up care focuses on ensuring the fracture remains stable and the open wound site heals without infection. Regular imaging may be used to track bone consolidation. Long-term outcomes depend on the severity of the initial injury and adherence to rehabilitation.

Complications

• Delayed union or nonunion of the fracture.
• Infection at the open fracture site.
• Persistent knee stiffness or reduced range of motion.
• Chronic pain or arthritis in the knee joint.
• Soft tissue scarring or nerve damage from the initial injury.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use protective gear during sports or activities with knee injury risk.
• Maintain bone health through a balanced diet and regular exercise.
• Follow rehabilitation guidelines to optimize healing and prevent stiffness.
• Monitor for signs of infection or delayed healing and report them promptly.

When to Seek Professional Help

• Increasing pain, swelling, or redness at the fracture site.
• Fever, chills, or other signs of infection.
• Sudden loss of knee movement or inability to bear weight.
• New deformity or instability in the knee.
• Worsening of soft tissue changes or delayed wound healing.

Tips for Medical Coders

This code is used for a subsequent encounter (F) of a nondisplaced transverse left patella fracture that was initially open (type IIIA, IIIB, or IIIC) and is now healing routinely. Documentation should confirm the fracture type, encounter status, and evidence of routine healing (e.g., stable alignment, progressive bone consolidation, and no complications). Ensure the open fracture classification (IIIA, IIIB, or IIIC) is clearly documented in the medical record to support code assignment.