S59.029G Salter-Harris Type II physeal fracture of lower end of ulna, unspecified arm, subsequent encounter for fracture with delayed healing

Name of the Condition

• Salter-Harris Type II physeal fracture of lower end of ulna, unspecified arm, subsequent encounter for fracture with delayed healing

Summary

This condition involves a Salter-Harris Type II fracture of the growth plate (physeal) at the lower end of the ulna, with delayed healing during a subsequent encounter. It typically affects children and adolescents, where the fracture extends through the physis and into the metaphysis. The injury may result from trauma to the forearm, particularly near the wrist joint, and requires ongoing monitoring due to the delayed healing process.

Causes

Salter-Harris Type II physeal fractures often occur due to direct impact, such as a fall onto an outstretched hand, or from forceful twisting of the forearm. Delayed healing may result from inadequate immobilization, poor blood supply to the fracture site, or underlying factors affecting bone repair.

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 non-compliance with immobilization protocols.

Symptoms

• Persistent pain and swelling near the wrist or forearm.
• Difficulty moving the wrist or hand, despite treatment.
• Tenderness to touch at the fracture site.
• Possible bruising around the affected area.
• Delayed union observed on imaging studies.

Diagnosis

Physical examination by a healthcare professional to assess pain, swelling, and range of motion. Imaging tests, especially X-rays, are used to evaluate fracture alignment and healing progress. Comparison with prior imaging may help determine if healing is delayed. Additional tests, such as MRI or CT scans, may be ordered if complications are suspected.

Treatment Options

Treatment focuses on promoting healing and may include extended immobilization with a cast or splint, activity modification, and pain management. In some cases, surgical intervention, such as internal fixation, may be necessary to stabilize the fracture. Physical therapy is often recommended to restore function once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture and adherence to treatment. Most cases heal with appropriate care, but delayed healing may prolong recovery. Regular follow-up appointments are essential to monitor progress and adjust treatment as needed. Long-term outcomes are generally good, but complications like growth disturbances or arthritis may occur in severe cases.

Complications

• Prolonged pain or functional impairment.
• Growth plate damage leading to limb length discrepancies.
• Post-traumatic arthritis in the wrist joint.
• Nonunion or malunion of the fracture.
• Nerve or vascular injury in rare cases.

Lifestyle & Prevention

• Use protective gear during sports or high-risk activities.
• Ensure proper technique and conditioning to reduce fall risks.
• Follow immobilization and activity restrictions as advised.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, swelling, or inability to move the wrist or hand. Contact a healthcare provider if symptoms worsen or do not improve with treatment, or if new symptoms like numbness or discoloration develop.

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture with delayed healing. Include details about the fracture type (Salter-Harris II), location (lower end of ulna, unspecified arm), and evidence of delayed healing (e.g., imaging findings or clinical assessment). Ensure the code S59.029G is used only when the fracture is actively healing but at a slower rate than expected.