Codes / ICD10CM / S42.416A

S42.416A Nondisplaced simple supracondylar fracture without intercondylar fracture of unspecified humerus, initial encounter for closed fracture

ICD10CM code

ICD10CM

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Name of the Condition

  • Nondisplaced simple supracondylar fracture without intercondylar fracture of unspecified humerus, initial encounter for closed fracture

Summary

This condition involves a fracture of the distal (lower) end of the humerus, near the elbow, where the bone breaks in a simple pattern without displacement or involvement of the intercondylar region. The fracture remains aligned, and the initial encounter indicates a closed fracture (no open wound). The unspecified humerus means the side (left or right) is not documented.

Causes

The fracture typically results from direct trauma, such as a fall onto an outstretched arm or a direct blow to the elbow. High-impact injuries, including sports-related incidents or motor vehicle accidents, may also cause this type of fracture.

Risk Factors

  • Participation in contact sports or activities with a high risk of falls.
  • Advanced age, which may increase bone fragility.
  • Osteoporosis or other bone-weakening conditions.
  • Previous elbow injuries or fractures.

Symptoms

  • Pain and tenderness at the elbow or lower arm.
  • Swelling and bruising around the affected area.
  • Difficulty moving the arm or limited range of motion.
  • Potential deformity or abnormal positioning of the elbow.

Diagnosis

Diagnosis is confirmed through physical examination and imaging, such as X-rays, to assess the fracture's location and pattern. Clinical evaluation helps determine if the fracture is nondisplaced and excludes intercondylar involvement. The initial encounter for a closed fracture is documented based on the absence of an open wound and the timing of the injury.

Treatment Options

  • Immobilization with a cast or splint to allow healing.
  • Pain management with medications or ice.
  • Physical therapy to restore range of motion and strength after healing.
  • Surgical intervention is rarely needed for nondisplaced fractures but may be considered if alignment is compromised.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with conservative treatment. Follow-up appointments monitor healing progress, and physical therapy may be recommended to restore function. Full recovery typically occurs within 6–12 weeks, depending on the patient's age and overall health.

Complications

  • Stiffness or limited range of motion in the elbow.
  • Nerve or blood vessel damage (rare).
  • Delayed healing or nonunion (rare).
  • Post-traumatic arthritis (long-term risk).

Lifestyle & Prevention

  • Use protective gear during contact sports or high-risk activities.
  • Maintain bone health through a balanced diet and regular exercise.
  • Avoid falls by using assistive devices if needed, especially in older adults.
  • Warm up properly before physical activity to reduce injury risk.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, deformity, or inability to move the arm after an injury. Also, consult a healthcare provider if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

Document the fracture as nondisplaced and simple, with no intercondylar involvement. Confirm the initial encounter for a closed fracture and note the unspecified humerus. Ensure clinical documentation supports the absence of displacement, open wound, and intercondylar extension to accurately assign this code.

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