S52.246H Nondisplaced spiral fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type I or II with delayed healing

Name of the Condition

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

Summary

A nondisplaced spiral fracture of the shaft of the ulna, unspecified arm, is a break in the long, straight portion of the ulna bone (one of the two forearm bones) with a spiral pattern and no misalignment of bone fragments. This fracture typically results from rotational forces and involves the main body of the ulna without displacement, meaning the broken bone ends remain in their normal anatomical position. The fracture is classified as open (type I or II), indicating a break in the skin with minimal contamination, and is documented as a subsequent encounter for delayed healing, meaning the fracture has not progressed as expected during the healing process.

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 twisting 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.

Symptoms

• 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.

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays, are used to confirm the fracture type, displacement, and healing status. The open fracture classification (type I or II) is determined by the extent of skin involvement and contamination. Delayed healing is identified through follow-up imaging showing insufficient bone union over time.

Treatment Options

Treatment focuses on stabilizing the fracture and promoting healing. This may include immobilization with a cast or splint, pain management, and monitoring for signs of infection or nonunion. Surgical intervention may be considered if healing does not progress. Open fractures require wound care to prevent infection.

Prognosis and Follow-Up

Prognosis depends on the fracture's response to treatment and any underlying factors affecting healing. Follow-up appointments are necessary to assess healing progress through imaging and clinical evaluation. Delayed healing may require extended immobilization, additional interventions, or referral to a specialist.

Complications

• Infection at the fracture site, especially with open fractures.
• Nonunion or malunion of the bone.
• Nerve or vascular damage in the forearm.
• Chronic pain or reduced function.

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through proper nutrition and exercise.
• Avoid falls by modifying environments (e.g., removing tripping hazards).
• Follow post-injury care instructions to support healing.

When to Seek Professional Help

Seek immediate medical attention for severe pain, swelling, or deformity. Contact a healthcare provider if symptoms worsen, or if there are signs of infection (e.g., redness, pus) or delayed healing.

Tips for Medical Coders

Document the fracture type (open, type I or II), encounter stage (subsequent), and delayed healing status clearly. Ensure clinical notes support the open fracture classification and healing timeline. Code S52.246H is specific to nondisplaced spiral fractures of the ulna shaft with these characteristics.