S72.364N Nondisplaced segmental fracture of shaft of right femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Nondisplaced Segmental Fracture of Shaft of Right Femur, Subsequent Encounter for Open Fracture Type IIIA, IIIB, or IIIC with Nonunion (ICD-10 Code: S72.364N)

Summary

A nondisplaced segmental fracture of the right femur shaft involves a break in the long, central portion of the thigh bone with a separate, intermediate bone fragment, where the bone fragments remain aligned. The term "subsequent encounter" indicates this is a follow-up visit for an established fracture. The fracture is classified as open (type IIIA, IIIB, or IIIC), meaning the overlying skin is broken, and the wound is contaminated or associated with extensive soft tissue damage. The presence of "nonunion" indicates the fracture has failed to heal properly after an expected period.

Causes

Such fractures often result from high-impact trauma, such as motor vehicle accidents, falls from significant heights, or direct blows to the thigh. Rotational forces or axial loading (e.g., during sports or industrial injuries) can also cause this type of break. Open fractures may occur when the trauma disrupts both the bone and the overlying skin, leading to contamination or soft tissue injury.

Risk Factors

• Participation in high-impact sports or activities.
• Osteoporosis or other bone-weakening conditions.
• Advanced age, due to decreased bone density.
• Prior history of fractures or bone abnormalities.
• Trauma or accidents involving significant force.
• Poor blood supply to the fracture site, which can impede healing.
• Infection or inadequate initial treatment of the open fracture.

Symptoms

• Persistent or recurrent pain at the fracture site, often severe.
• Swelling, bruising, or tenderness that does not improve over time.
• Inability to bear weight on the affected leg.
• Visible signs of an open wound (if present) or drainage from the site.
• Possible numbness or tingling if nerve involvement occurs.
• Limb shortening or deformity if the fracture has displaced (though initially nondisplaced).

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging studies, such as X-rays or CT scans, are used to confirm the fracture type, assess for nonunion (e.g., visible gap between bone fragments or absence of callus formation), and evaluate the extent of soft tissue damage. Laboratory tests may be ordered to check for infection or assess healing status. Documentation must specify the open fracture type (IIIA, IIIB, or IIIC) and the presence of nonunion.

Treatment Options

Treatment focuses on promoting fracture healing and managing the open wound. Options may include surgical intervention (e.g., internal fixation with plates or screws, bone grafting to stimulate healing, or debridement to clean the wound). Antibiotics are often prescribed to prevent or treat infection. Physical therapy may be recommended to restore strength and mobility once healing progresses. Follow-up imaging is typically performed to monitor healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the initial injury, the success of treatment, and the patient’s overall health. Nonunion fractures may require additional interventions, such as surgery or bone stimulation techniques. Regular follow-up appointments are necessary to assess healing, manage complications, and adjust treatment plans. Long-term monitoring may be needed to ensure full recovery and prevent future fractures.

Complications

• Infection at the fracture site or open wound.
• Delayed or failed healing (nonunion or malunion).
• Nerve or blood vessel damage.
• Chronic pain or reduced mobility.
• Post-traumatic arthritis in the hip or knee.
• Need for additional surgeries.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Follow prescribed weight-bearing restrictions to protect the healing bone.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Use protective equipment during sports or activities with a risk of injury.
• Quit smoking, as it can impair bone healing.
• Attend all follow-up appointments to monitor progress.

When to Seek Professional Help

Seek immediate medical attention if you experience:

• Severe, worsening, or unrelenting pain.
• Signs of infection (e.g., fever, redness, pus, or increased swelling).
• Numbness, tingling, or loss of sensation in the leg or foot.
• Inability to move the leg or bear weight.
• Visible changes in the fracture site (e.g., new deformity or drainage).

Tips for Medical Coders

Document the encounter as a subsequent visit for an established fracture. Specify the open fracture type (IIIA, IIIB, or IIIC) and confirm the presence of nonunion. Ensure documentation supports the ongoing nature of the fracture and any complications. Code S72.364N is appropriate when the fracture is nondisplaced, segmental, involves the right femur shaft, is open (type IIIA, IIIB, or IIIC), and has failed to unite.