S52.265H Nondisplaced segmental fracture of shaft of ulna, left arm, subsequent encounter for open fracture type I or II with delayed healing

Name of the Condition

• Nondisplaced segmental fracture of shaft of ulna, left arm, subsequent encounter for open fracture type I or II with delayed healing

Summary

A nondisplaced segmental fracture of the shaft of the ulna, left arm, is a break in the long, straight portion of the ulna bone (one of the two forearm bones) where the bone is broken into two or more separate fragments, but these fragments remain in their normal anatomical alignment. This type of fracture involves the main body of the ulna and is classified as an open fracture type I or II, meaning the skin is breached but the wound is typically small and clean. The term "subsequent encounter" indicates this is a follow-up visit for ongoing care, and "delayed healing" refers to a fracture that has not progressed as expected during the normal healing timeline.

Causes

Direct trauma to the forearm, such as from a fall, blow, or accident. High-impact injuries, including sports-related incidents or motor vehicle collisions. Indirect forces transmitted through the wrist or elbow, potentially causing a break in the ulna shaft.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or other conditions that weaken bone density.
• Previous fractures or bone abnormalities that may predispose to injury.
• Advanced age, which can reduce bone strength.
• Poor blood supply to the fracture site.
• Inadequate immobilization or non-compliance with treatment.

Symptoms

• Persistent pain and tenderness localized to the forearm.
• Swelling and bruising around the injured area.
• Difficulty moving the arm, wrist, or hand due to pain or instability.
• Possible visible deformity if the fracture is displaced (though less common in nondisplaced cases).
• Prolonged healing time compared to typical fracture recovery.

Diagnosis

Diagnosis is confirmed through clinical evaluation and imaging studies, typically X-rays, which show the segmental fracture pattern and assess alignment. Additional imaging, such as CT scans, may be used to evaluate the fracture in detail. The open fracture classification (type I or II) is determined by the size and cleanliness of the skin wound. Delayed healing is identified when radiographic evidence shows insufficient progress in bone union over time, often requiring serial imaging to monitor healing.

Treatment Options

Treatment focuses on promoting healing and managing the open fracture. This may include wound care to prevent infection, immobilization with a cast or splint to stabilize the fracture, and pain management. Surgical intervention, such as internal or external fixation, may be considered if healing does not progress or if the fracture shows signs of displacement. Physical therapy is often recommended to restore function once healing allows.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the patient’s overall health, and adherence to treatment. Delayed healing may extend recovery time, but most fractures eventually heal with appropriate care. Follow-up visits are essential to monitor healing progress, adjust treatment as needed, and address any complications. Regular imaging is typically performed to assess bone union and guide further management.

Complications

• Infection at the site of the open fracture.
• Nonunion or malunion of the fracture.
• Nerve or blood vessel damage.
• Chronic pain or stiffness in the forearm.
• Limited range of motion in the arm or wrist.

Lifestyle & Prevention

• Avoid high-risk activities until fully healed.
• Ensure proper nutrition, including adequate calcium and vitamin D, to support bone health.
• Use protective gear during sports or activities with a risk of falls.
• Follow medical advice for immobilization and activity restrictions.

When to Seek Professional Help

Seek immediate medical attention if there is increased pain, swelling, redness, or drainage from the wound, as these may indicate infection. Contact a healthcare provider if there is new or worsening deformity, numbness, or tingling in the hand or fingers, or if the fracture does not show signs of healing as expected.

Tips for Medical Coders

Document the fracture type (open type I or II), the subsequent encounter status, and evidence of delayed healing, such as radiographic findings or clinical notes indicating prolonged healing time. Ensure the left arm and ulna shaft location are clearly specified. Use this code only when the fracture is nondisplaced and the encounter is for follow-up of an open fracture with delayed healing.