S59.239K Salter-Harris Type III physeal fracture of lower end of radius, unspecified arm, subsequent encounter for fracture with nonunion

Name of the Condition

• Salter-Harris Type III physeal fracture of lower end of radius, unspecified arm, subsequent encounter for fracture with nonunion

Summary

This condition describes a Salter-Harris Type III fracture involving the growth plate (physeal) at the lower end of the radius bone, affecting an unspecified arm. It is a subsequent encounter for a fracture with nonunion, indicating the fracture has failed to heal properly after previous treatment. The injury involves a fracture that extends through the growth plate and into the joint surface, typically occurring in children and adolescents due to trauma near the wrist joint.

Causes

Salter-Harris Type III physeal fractures commonly result from direct impact, such as a fall onto an outstretched hand, or forceful twisting of the forearm. Nonunion may occur due to inadequate immobilization, poor blood supply to the fracture site, or excessive movement during healing.

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.
• Certain genetic or metabolic conditions affecting bone development may also elevate susceptibility.
• Inadequate initial treatment or noncompliance with immobilization protocols.

Symptoms

• Persistent pain and swelling near the wrist or forearm.
• Difficulty moving the wrist or hand, even after initial healing.
• Tenderness to touch at the fracture site.
• Possible visible deformity or bruising around the affected area.
• Limited range of motion in the wrist joint.

Diagnosis

Physical examination by a healthcare professional to assess pain, swelling, and range of motion. Imaging tests, especially X-rays, to visualize the fracture and confirm nonunion. Additional imaging, such as CT or MRI, may be used to evaluate the extent of the nonunion and joint involvement.

Treatment Options

• Surgical intervention, such as open reduction and internal fixation, to realign the fracture and promote healing.
• Bone grafting to stimulate bone growth and repair the nonunion.
• Immobilization with a cast or splint to stabilize the fracture during healing.
• Physical therapy to restore range of motion and strength after healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and the success of treatment. Regular follow-up appointments are necessary to monitor healing and adjust treatment as needed. Long-term outcomes may include residual stiffness or deformity if the nonunion is not fully resolved.

Complications

• Chronic pain or discomfort.
• Limited range of motion in the wrist.
• Potential for growth disturbances due to damage to the growth plate.
• Increased risk of future fractures in the affected area.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use protective gear during sports or activities with a risk of falls.
• Follow post-treatment instructions carefully to promote proper healing.
• Maintain a healthy diet rich in calcium and vitamin D to support bone health.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after an injury. Contact your healthcare provider if symptoms persist or worsen despite treatment, or if you notice new or worsening limitations in wrist movement.

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture with nonunion. Ensure the record specifies the fracture type (Salter-Harris Type III), location (lower end of radius), and arm (unspecified). Include details about the nonunion, such as imaging findings or surgical interventions, to support the code assignment.