S59.032G Salter-Harris Type III physeal fracture of lower end of ulna, left arm, subsequent encounter for fracture with delayed healing

Name of the Condition

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

Summary

This condition represents a Salter-Harris Type III fracture of the growth plate (physeal) at the lower end of the ulna in the left arm, with delayed healing during a subsequent encounter. It typically affects children and adolescents, where the fracture extends through the physis (growth plate) and into the epiphysis, potentially disrupting joint surfaces. The injury may result from trauma to the forearm, particularly near the wrist joint, and the "subsequent encounter" and "delayed healing" modifiers indicate ongoing management of a healing process that is not progressing as expected.

Causes

Salter-Harris Type III physeal fractures often occur due to direct impact, such as a fall onto an outstretched hand, or from forceful twisting of the forearm. These injuries are common in activities involving sudden stops or collisions, where the growth plate is weaker than surrounding bone. Delayed healing may result from inadequate immobilization, poor blood supply, 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 can contribute to delayed healing.

Symptoms

• Persistent pain and swelling near the wrist or forearm despite initial treatment.
• Difficulty moving the wrist or hand, with limited range of motion.
• Tenderness to touch at the fracture site, which may be more pronounced than expected for the healing stage.
• Possible bruising around the affected area, indicating ongoing inflammation or poor healing.

Diagnosis

Physical examination by a healthcare professional to assess pain, swelling, and range of motion, focusing on signs of delayed healing. Imaging tests, especially X-rays, are used to evaluate fracture alignment and healing progress. Additional studies like MRI or CT scans may be ordered if there are concerns about joint involvement or nonunion.

Treatment Options

Treatment focuses on promoting healing and may include extended immobilization with a cast or splint, activity modification, and close monitoring. Surgical intervention, such as internal fixation, may be considered if the fracture is unstable or if delayed healing persists. Physical therapy is often recommended to restore function once healing is confirmed.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture and adherence to treatment. Most cases heal with appropriate management, but delayed healing may prolong recovery. Regular follow-up appointments are necessary to monitor progress, with imaging to assess healing. Long-term outcomes are generally good if the growth plate is not severely disrupted.

Complications

• Nonunion or malunion of the fracture, leading to deformity or functional impairment.
• Growth disturbances if the growth plate is damaged, potentially causing limb length discrepancy.
• Joint stiffness or arthritis due to prolonged immobilization or joint surface disruption.
• Chronic pain or reduced mobility if healing is incomplete.

Lifestyle & Prevention

• Ensure proper immobilization and follow-up care to support healing.
• Avoid high-impact activities until cleared by a healthcare provider.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Use protective gear during sports or activities with fall risks to prevent initial injury.

When to Seek Professional Help

Seek immediate medical attention if there is increased pain, swelling, or deformity, or if the cast/splint becomes loose or damaged. Contact a healthcare provider if symptoms worsen or do not improve with treatment, as this may indicate delayed healing or complications.

Tips for Medical Coders

Document the fracture type (Salter-Harris III), location (lower end of ulna, left arm), and the "subsequent encounter" and "delayed healing" modifiers clearly. Ensure clinical notes specify the healing status and any interventions, as these are critical for accurate coding. Verify that the encounter aligns with the "subsequent" and "delayed healing" criteria to support the code assignment.