S52.223E Displaced transverse fracture of shaft of unspecified ulna, subsequent encounter for open fracture type I or II with routine healing

Name of the Condition

• Displaced transverse fracture of shaft of unspecified ulna, subsequent encounter for open fracture type I or II with routine healing

Summary

A displaced transverse fracture of the shaft of the unspecified ulna is a horizontal break across the long, central portion of the ulna bone (one of the two forearm bones) where the bone fragments are shifted out of alignment. This is a subsequent encounter for an open fracture type I or II, meaning the skin over the fracture site was previously broken (type I) or had a wound larger than 1 cm without extensive soft tissue damage (type II), and the fracture is now healing routinely. The term "subsequent encounter" indicates this is a follow-up visit after initial treatment, and "routine healing" confirms the fracture is progressing as expected without complications.

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.

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 remains displaced.

Diagnosis

Physical examination to assess tenderness, swelling, and range of motion. Imaging studies, such as X-rays, to confirm the fracture type, displacement, and healing status. Review of prior treatment and wound status to determine if healing is routine.

Treatment Options

Monitoring of fracture healing through regular follow-up visits. Pain management with medications or other therapies. Immobilization (e.g., cast or brace) if needed to support healing. Physical therapy to restore strength and mobility once healing allows.

Prognosis and Follow-Up

With routine healing, most fractures heal within the expected timeframe, and function typically returns. Follow-up appointments are important to ensure proper alignment and progress. Full recovery may take several weeks to months, depending on the individual and fracture severity.

Complications

Delayed healing or nonunion if the fracture does not heal as expected. Infection, though less likely in routine healing scenarios. Persistent pain or stiffness in the forearm or wrist.

Lifestyle & Prevention

Avoid high-risk activities until cleared by a healthcare provider. Use protective gear during sports or activities with fall risks. Maintain bone health through a balanced diet and regular exercise to support strength.

When to Seek Professional Help

Increased pain, swelling, or redness at the injury site. New or worsening deformity. Signs of infection, such as fever or pus. Difficulty moving the arm or hand that does not improve.

Tips for Medical Coders

Document the fracture type (open I or II), encounter stage (subsequent), and healing status (routine) to support accurate coding. Ensure clinical notes reflect the absence of complications or delayed healing. Verify that the ulna shaft and transverse displacement are clearly described to align with the code criteria.