Codes / ICD10CM / S59.042S

S59.042S Salter-Harris Type IV physeal fracture of lower end of ulna, left arm, sequela

ICD10CM code

ICD10CM

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Name of the Condition

  • Salter-Harris Type IV physeal fracture of lower end of ulna, left arm, sequela

Summary

This condition represents a Salter-Harris Type IV fracture of the growth plate (physeal) at the lower end of the ulna in the left arm, with associated long-term effects (sequela). Salter-Harris Type IV fractures involve the physis, metaphysis, and epiphysis, typically occurring in children and adolescents due to the relative weakness of the growth plate. The "sequela" modifier indicates residual impairment or complications following the initial injury.

Causes

Salter-Harris Type IV physeal fractures often result from direct trauma, such as a fall onto an outstretched hand, a forceful blow to the forearm, or a twisting injury. The fracture pattern occurs when force is applied to the wrist or forearm, causing the bone to break through the growth plate and adjacent bone segments. High-impact activities or accidents involving sudden force to the arm are common triggers.

Risk Factors

  • Children and adolescents are at higher risk due to the presence of growth plates.
  • Participation in contact sports or activities with a high likelihood of falls increases risk.
  • Pre-existing conditions affecting bone strength, such as metabolic bone disorders, may elevate susceptibility.

Symptoms

  • Persistent pain or discomfort at the fracture site.
  • Limited range of motion in the wrist or forearm.
  • Visible deformity or malalignment of the affected area.
  • Possible numbness or tingling due to nerve involvement.

Diagnosis

Physical examination by a healthcare professional to assess pain, swelling, and range of motion. Imaging studies, such as X-rays or MRI, are typically used to confirm the fracture type and assess for residual damage or healing complications. The diagnosis focuses on identifying persistent structural or functional changes related to the sequela.

Treatment Options

Treatment may include pain management, physical therapy to restore function, and orthopedic interventions if deformity or instability is present. Surgical correction might be necessary for severe cases. Long-term monitoring is often required to address ongoing symptoms or complications.

Prognosis and Follow-Up

Prognosis depends on the severity of the initial injury and the effectiveness of treatment. Some individuals may experience residual stiffness, growth disturbances, or functional limitations. Regular follow-up with an orthopedic specialist is recommended to monitor healing and address any long-term effects.

Complications

  • Growth plate disturbance leading to limb length discrepancy.
  • Chronic pain or arthritis in the affected joint.
  • Nerve or vascular damage causing sensory or circulatory issues.
  • Reduced mobility or strength in the affected arm.

Lifestyle & Prevention

  • Use protective gear during high-risk activities like sports.
  • Ensure proper warm-up and technique to reduce injury risk.
  • Maintain bone health through adequate nutrition and exercise.
  • Seek prompt medical attention for arm injuries to prevent complications.

When to Seek Professional Help

Consult a healthcare provider if you experience persistent pain, swelling, deformity, or loss of function in the left forearm or wrist. Immediate care is needed for signs of nerve or vascular compromise, such as numbness, discoloration, or severe pain.

Tips for Medical Coders

Document the specific anatomical location (lower end of ulna, left arm) and the sequela status clearly. Ensure the fracture type (Salter-Harris Type IV) and affected bone segments are accurately recorded. Include details of any residual impairments or complications to support the sequela modifier.

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