Codes / ICD10CM / S99.121S

S99.121S Salter-Harris Type II physeal fracture of right metatarsal, sequela

ICD10CM code

ICD10CM

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Name of the Condition

  • Salter-Harris Type II physeal fracture of right metatarsal, sequela

Summary

This condition represents a Salter-Harris Type II fracture of the right metatarsal growth plate (physis) with a sequela, indicating a residual effect or complication following the initial injury. Type II fractures involve separation of the growth plate with a metaphyseal fragment. Sequela refers to the long-term consequences of the fracture, such as chronic pain, deformity, or functional impairment, which may persist after the acute phase has resolved. These injuries typically occur in children or adolescents and require ongoing monitoring to address residual effects.

Causes

The sequela arises from a prior Salter-Harris Type II fracture of the right metatarsal, where incomplete healing, malunion, or growth disturbance leads to persistent symptoms. The original injury was likely caused by direct trauma, such as falls, sports-related impacts, or accidents, which disrupted the growth plate and adjacent bone structure. The sequela develops as a result of the initial fracture's impact on bone development or healing.

Risk Factors

  • Age: Children and adolescents, as their growth plates are still developing and more susceptible to injury.
  • High-impact activities: Participation in sports like running, jumping, or contact sports.
  • Previous injuries: Prior damage to the metatarsals or surrounding structures may increase vulnerability.
  • Inadequate initial treatment: Improper management of the original fracture can contribute to long-term complications.

Symptoms

  • Chronic pain or discomfort in the right metatarsal area.
  • Persistent swelling or deformity of the foot.
  • Difficulty bearing weight or walking on the affected foot.
  • Limited range of motion in the toes or foot.
  • Possible leg length discrepancy or gait abnormalities.

Diagnosis

Diagnosis involves a thorough clinical evaluation, including a review of the patient's history of the original fracture and current symptoms. Physical examination assesses for deformity, tenderness, or functional limitations. Imaging studies, such as X-rays or MRI, may be used to evaluate the residual bone structure, growth plate status, and any associated complications like malunion or avascular necrosis. The sequela is confirmed by the presence of persistent symptoms or structural changes following the initial injury.

Treatment Options

Treatment focuses on managing symptoms and addressing residual effects. This may include pain management with medications, physical therapy to improve function and strength, and orthotic devices or braces to support the foot. In some cases, surgical intervention may be necessary to correct deformities or improve alignment. Long-term monitoring is essential to assess growth and functional outcomes.

Prognosis and Follow-Up

Prognosis depends on the severity of the sequela and the effectiveness of treatment. Most patients experience improvement with appropriate management, though some may have persistent limitations. Regular follow-up appointments are necessary to monitor growth, functional status, and address any new complications. Early intervention can help minimize long-term effects.

Complications

  • Chronic pain or discomfort.
  • Deformity or malalignment of the foot.
  • Growth disturbances leading to leg length discrepancy.
  • Arthritis or joint stiffness in the affected area.
  • Reduced mobility or functional impairment.

Lifestyle & Prevention

  • Avoid high-impact activities that stress the foot until cleared by a healthcare provider.
  • Use proper footwear and orthotics to support the foot and reduce strain.
  • Maintain a healthy weight to minimize stress on the foot.
  • Follow rehabilitation guidelines to restore strength and function.
  • Attend regular check-ups to monitor for complications.

When to Seek Professional Help

Seek medical attention if you experience worsening pain, new swelling, difficulty walking, or signs of infection (e.g., redness, warmth, or drainage) in the affected area. Prompt evaluation is important to address any new issues or complications related to the sequela.

Tips for Medical Coders

Use this code for a Salter-Harris Type II physeal fracture of the right metatarsal with a sequela, indicating residual effects following the initial injury. Document the nature of the sequela (e.g., chronic pain, deformity) and any associated complications. Ensure the code aligns with the patient's history and current clinical findings to accurately reflect the condition.

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