S72.25XN Nondisplaced subtrochanteric fracture of left femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Nondisplaced subtrochanteric fracture of left femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Summary

A nondisplaced subtrochanteric fracture of the left femur is a break in the thigh bone just below the lesser trochanter, where the bone fragments remain in their normal alignment. This code applies to a subsequent encounter for an open fracture (type IIIA, IIIB, or IIIC) that has failed to heal (nonunion). The condition requires ongoing evaluation to address both the fracture and the open wound, with treatment focused on stabilizing the bone and promoting healing while managing the risk of infection.

Causes

High-impact trauma, such as falls or motor vehicle accidents, which can result in an open fracture. Direct force to the hip or thigh region, leading to both bone and soft tissue damage. Underlying bone conditions, including osteoporosis or osteopenia, which may weaken the bone and increase fracture risk. Inadequate healing from prior treatment or poor blood supply to the fracture site can contribute to nonunion.

Risk Factors

• Advanced age, particularly in individuals over 65.
• Chronic conditions affecting bone health, such as osteoporosis or cancer.
• History of prior fractures or bone disorders.
• Participation in high-risk activities or sports with potential for falls or collisions.
• Poor bone density or metabolic bone diseases.
• Inadequate initial fracture management or noncompliance with treatment.

Symptoms

• Severe pain in the hip, groin, or thigh area.
• Inability to bear weight on the affected leg.
• Swelling, bruising, or visible deformity at the fracture site.
• Shortening or rotation of the injured leg.
• Open wound at the fracture site (for type IIIA, IIIB, or IIIC open fracture).
• Persistent pain or instability indicating nonunion.

Diagnosis

Imaging studies, such as X-rays or CT scans, to assess fracture alignment and healing. Clinical evaluation to determine the presence of an open wound and its classification (IIIA, IIIB, or IIIC). Assessment of nonunion through radiographic evidence of failed healing over time. Evaluation of soft tissue damage and potential infection.

Treatment Options

Surgical intervention to stabilize the fracture, such as internal fixation with plates or nails. Management of the open wound, including debridement and closure. Antibiotics to prevent or treat infection. Bone grafting or other procedures to promote healing in cases of nonunion. Physical therapy to restore mobility and strength once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the open fracture, the success of treatment, and the patient’s overall health. Nonunion may require additional interventions, such as revision surgery or bone stimulation. Regular follow-up with imaging and clinical assessments to monitor healing and address complications. Long-term rehabilitation may be necessary to regain function.

Complications

Infection at the fracture site or open wound. Delayed or failed healing (nonunion). Malunion or misalignment of the fracture. Nerve or vascular damage. Chronic pain or reduced mobility. Need for additional surgeries.

Lifestyle & Prevention

Avoid high-risk activities that increase fall or injury risk. Maintain bone health through adequate calcium and vitamin D intake. Engage in weight-bearing exercises to strengthen bones. Use protective equipment during sports or activities. Follow post-fracture care instructions to support healing.

When to Seek Professional Help

Persistent or worsening pain, swelling, or deformity. Signs of infection, such as fever, redness, or drainage from the wound. Inability to bear weight or use the leg. New or worsening symptoms after treatment. Concerns about fracture healing or nonunion.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and the presence of nonunion to support code assignment. Include details of the encounter (subsequent) and the open fracture classification. Note any surgical interventions or wound management performed. Ensure documentation aligns with the code’s specificity for the left femur and nondisplaced nature of the fracture.