S72.035M Nondisplaced midcervical fracture of left femur, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Nondisplaced midcervical fracture of left femur, subsequent encounter for open fracture type I or II with nonunion

Summary

A nondisplaced midcervical fracture of the left femur is a break in the middle portion of the femoral neck (the region connecting the femoral head to the shaft) on the left side, with the bone fragments remaining in their normal alignment. This code applies to a subsequent encounter for an open fracture type I or II (where the skin is breached but the wound is limited) that has failed to heal (nonunion). The condition requires ongoing evaluation to address both the fracture and the open wound, as well as the delayed healing process.

Causes

High-impact trauma, such as falls or motor vehicle accidents. Low-impact trauma in individuals with weakened bones (e.g., osteoporosis). Open fractures may result from the same mechanisms, with the skin being penetrated by the fracture or an external object. Nonunion can occur due to inadequate immobilization, poor blood supply, infection, or excessive movement at the fracture site.

Risk Factors

• Advanced age, particularly in those over 65
• Osteoporosis or other bone density disorders
• Female gender, due to higher osteoporosis prevalence
• History of prior fractures or bone diseases
• Participation in high-risk activities (e.g., contact sports)
• Open fractures may be more likely in cases involving significant trauma or penetrating injuries.
• Factors contributing to nonunion include smoking, diabetes, or inadequate initial treatment.

Symptoms

• Persistent hip or groin pain, often worsening with movement
• Inability to bear weight on the affected leg
• Swelling, bruising, or tenderness around the hip
• Leg shortening or external rotation of the affected limb
• Limited range of motion in the hip joint
• Visible or palpable wound (for open fractures)
• Delayed healing or persistent pain beyond the expected recovery period (for nonunion)

Diagnosis

Physical examination to assess pain, mobility, limb alignment, and wound status. Imaging studies, including X-rays or CT scans, to visualize the fracture, assess for nonunion (e.g., persistent fracture line, lack of callus formation), and evaluate the open wound. Laboratory tests may be used to check for infection or underlying conditions affecting bone healing.

Treatment Options

• Wound care for open fractures (cleaning, dressing, or surgical debridement if needed)
• Immobilization (casting, bracing, or traction) to stabilize the fracture
• Surgical intervention (e.g., internal fixation, bone grafting) to promote healing in cases of nonunion
• Pain management (medications, physical therapy)
• Antibiotics for open fractures to prevent infection
• Monitoring for complications (e.g., infection, avascular necrosis)

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and underlying health factors. Nonunion may require additional interventions, and open fractures carry a risk of infection. Follow-up care includes regular imaging to assess healing, physical therapy to restore function, and monitoring for complications. Long-term outcomes may involve reduced mobility or the need for assistive devices.

Complications

• Infection (especially with open fractures)
• Nonunion or delayed union
• Avascular necrosis (loss of blood supply to the femoral head)
• Malunion (improper healing of the fracture)
• Chronic pain or arthritis
• Reduced mobility or disability
• Nerve or vascular injury

Lifestyle & Prevention

• Maintain bone health through adequate calcium and vitamin D intake
• Engage in weight-bearing exercise to strengthen bones
• Avoid high-risk activities or use protective gear
• Manage underlying conditions (e.g., osteoporosis) with medication
• Use assistive devices (e.g., canes, walkers) to prevent falls in older adults
• Follow post-treatment instructions to promote healing and reduce complications

When to Seek Professional Help

Seek immediate medical attention for severe pain, inability to bear weight, visible wounds, or signs of infection (e.g., fever, redness, drainage). Follow up with a healthcare provider if pain persists, swelling worsens, or mobility does not improve as expected.

Tips for Medical Coders

This code (S72.035M) is used for a subsequent encounter for an open fracture type I or II of the left femur with nonunion. Documentation should specify the fracture type (open I/II), location (midcervical, left femur), and the presence of nonunion. Ensure the encounter is classified as "subsequent" (not initial) and that the open fracture and nonunion are clearly documented to support code assignment.