S72.355M Nondisplaced comminuted fracture of shaft of left femur, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Nondisplaced comminuted fracture of shaft of left femur, subsequent encounter for open fracture type I or II with nonunion (ICD-10 Code: S72.355M)

Summary

This condition involves a fracture of the left femur (thighbone) where the bone is broken into multiple pieces, but the fragments remain in their normal anatomical position (nondisplaced). The fracture is localized to the shaft (central portion) of the left femur and is classified as an open fracture type I or II, indicating a break in the skin with minimal contamination. This is a subsequent encounter, meaning the patient is receiving care for an established fracture that has not healed (nonunion) after previous treatment.

Causes

Such fractures typically result from high-impact trauma, such as motor vehicle accidents, falls from significant heights, or direct force to the thigh. Rotational or axial loading injuries can also cause this type of break. Open fractures occur when the broken bone pierces the skin, often due to the force of the trauma. Nonunion may develop if the fracture fails to heal properly, which can be due to inadequate immobilization, poor blood supply, infection, or other factors.

Risk Factors

• Osteoporosis or other bone-weakening conditions.
• Advanced age, due to decreased bone density.
• Participation in high-impact sports or activities.
• Prior history of fractures or bone abnormalities.
• Trauma involving significant force.
• Smoking or poor nutrition, which can impair healing.
• Infection at the fracture site.

Symptoms

• Persistent severe pain in the thigh, even after initial treatment.
• Swelling, bruising, or tenderness at the fracture site.
• Inability to bear weight on the affected leg.
• Possible visible wound or break in the skin (from the open fracture).
• Limited range of motion in the hip or knee.
• Crepitus (grinding sensation) at the fracture site.
• Numbness or tingling if nerve involvement occurs.

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging tests such as X-rays, CT scans, or MRI may be used to evaluate the fracture pattern, assess for nonunion, and check for signs of infection. Blood tests may be performed to rule out infection or assess healing. Documentation should confirm the fracture type, location, and the presence of nonunion.

Treatment Options

Treatment focuses on promoting healing and managing the open fracture. Options may include surgical intervention (e.g., internal fixation, bone grafting) to stabilize the fracture and address nonunion. Antibiotics may be prescribed to prevent or treat infection. Immobilization with a cast or brace may be necessary. Physical therapy is often recommended to restore strength and mobility once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the patient’s overall health. Nonunion may require additional interventions, and recovery can be prolonged. Regular follow-up appointments are essential to monitor healing, assess for complications, and adjust treatment as needed. Long-term outcomes may include residual pain or limited mobility.

Complications

• Infection at the fracture site or surgical site.
• Delayed or failed healing (nonunion).
• Malunion (improper healing leading to deformity).
• Nerve or blood vessel damage.
• Chronic pain or arthritis in the hip or knee.
• Limited mobility or functional impairment.

Lifestyle & Prevention

• Avoid high-impact activities that risk injury.
• Maintain a diet rich in calcium and vitamin D to support bone health.
• Quit smoking, as it impairs healing.
• Use protective equipment during sports or activities.
• Follow post-treatment instructions carefully to promote healing.
• Attend all follow-up appointments to monitor progress.

When to Seek Professional Help

Seek immediate medical attention if you experience:

• Severe, worsening pain.
• Signs of infection (e.g., fever, redness, pus).
• Increased swelling or bruising.
• Numbness, tingling, or loss of sensation.
• Inability to move the leg or bear weight.
• Any concerns about healing or new symptoms.

Tips for Medical Coders

Document the fracture type (open I or II), location (left femur shaft), and the presence of nonunion. Specify that this is a subsequent encounter for an established fracture. Ensure documentation supports the open fracture classification and nonunion diagnosis to justify the code. Note any surgical interventions or complications that may affect coding.