S72.346H Nondisplaced spiral fracture of shaft of unspecified femur, subsequent encounter for open fracture type I or II with delayed healing

Name of the Condition

• Nondisplaced Spiral Fracture of Shaft of Unspecified Femur, Subsequent Encounter for Open Fracture Type I or II with Delayed Healing (ICD-10 Code: S72.346H)

Summary

This condition describes a spiral-patterned break in the shaft (long central portion) of the femur (thigh bone) where the bone fragments remain in their normal alignment (nondisplaced). The fracture is associated with an open wound (open fracture type I or II) and is documented during a subsequent encounter, indicating ongoing care for delayed healing. The spiral pattern results from rotational forces applied to the bone, creating a helical or corkscrew-shaped break.

Causes

Such fractures typically result from high-impact trauma, such as motor vehicle accidents, falls from significant heights, or direct rotational forces to the thigh. Sports injuries, industrial accidents, or other events involving twisting or torsional stress can also cause this type of fracture. The open nature of the fracture indicates that the broken bone has pierced the skin, though the wound is typically small (type I) or moderate (type II) in severity. Delayed healing may occur due to factors like poor blood supply, infection, or inadequate immobilization.

Risk Factors

• Participation in high-impact or rotational activities (e.g., contact sports, skiing).
• Osteoporosis or weakened bone conditions.
• Advanced age, due to decreased bone density.
• Prior history of fractures or bone abnormalities.
• Trauma involving significant rotational force.
• Open fractures may be more prone to delayed healing due to increased risk of infection or soft tissue damage.

Symptoms

• Persistent localized pain in the thigh, even with immobilization.
• Swelling, bruising, or tenderness around the fracture site.
• Inability to bear weight or move the affected leg.
• Possible visible deformity or shortening of the leg (if displaced).
• Numbness or tingling if nerve involvement occurs.
• Delayed healing may present with prolonged pain or lack of radiographic evidence of bone union.

Diagnosis

Physical examination reveals tenderness, swelling, and possible deformity at the fracture site. Imaging studies, such as X-rays or CT scans, confirm the spiral fracture pattern and assess for displacement or open wound characteristics. Documentation of the fracture type (open I or II) and healing status (delayed) is critical for accurate coding. Follow-up imaging may be used to evaluate progress toward union.

Treatment Options

Treatment focuses on stabilizing the fracture and promoting healing. This may include immobilization with a cast or brace, surgical fixation (e.g., intramedullary nailing), or wound care for open fractures. Pain management and physical therapy are often employed to restore function. For delayed healing, additional interventions like bone grafting or electrical stimulation may be considered.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, patient health, and adherence to treatment. Most nondisplaced fractures heal with proper care, but delayed healing may extend recovery time. Regular follow-up appointments with imaging are necessary to monitor progress. Complications like infection or nonunion require prompt intervention.

Complications

• Infection at the fracture site or open wound.
• Nonunion (failure of the bone to heal).
• Malunion (improper healing leading to deformity).
• Nerve or vascular damage.
• Chronic pain or reduced mobility.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Maintain bone health through diet (calcium, vitamin D) and exercise.
• Use protective gear during sports or high-risk activities.
• Address underlying conditions like osteoporosis to reduce fracture risk.

When to Seek Professional Help

Seek immediate care for severe pain, swelling, or signs of infection (e.g., fever, redness). Contact a provider if pain persists or worsens, or if mobility does not improve with treatment.

Tips for Medical Coders

Document the fracture type (open I or II), encounter type (subsequent), and healing status (delayed) to accurately assign S72.346H. Ensure clinical notes specify the open wound characteristics and evidence of delayed healing (e.g., radiographic findings, prolonged healing timeline) to support coding.