S52.235D Nondisplaced oblique fracture of shaft of left ulna, subsequent encounter for closed fracture with routine healing

Name of the Condition

• Nondisplaced oblique fracture of shaft of left ulna, subsequent encounter for closed fracture with routine healing

Summary

A nondisplaced oblique fracture of the shaft of the left ulna is a break in the long, straight portion of the left ulna bone (one of the two forearm bones) where the fracture line runs at an angle across the bone, and the bone fragments remain aligned. This type of fracture involves the main body of the ulna and is classified as closed (no open wound) and subsequent (follow-up encounter) with routine healing, indicating 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 an angled 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

Physical examination to assess tenderness, swelling, and range of motion. Imaging tests, such as X-rays, to confirm the fracture and evaluate alignment. Additional imaging (e.g., CT scans) may be used if further detail is needed. Clinical documentation should reflect the fracture status and healing progress.

Treatment Options

• Immobilization with a cast or splint to stabilize the fracture during healing.
• Pain management with over-the-counter or prescription medications.
• Physical therapy to restore strength and range of motion once healing allows.
• Monitoring for signs of delayed healing or complications.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with proper immobilization and follow-up care. Routine healing indicates the fracture is progressing as expected. Follow-up appointments are typically scheduled to assess healing via imaging and clinical evaluation. 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 progress as expected.
• Malunion, where the bone heals in an abnormal position.
• Infection (rare, unless the fracture was open initially).
• Stiffness or reduced range of motion in the forearm or wrist.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports).
• Maintain bone health through adequate calcium and vitamin D intake.
• Avoid falls by modifying the home environment (e.g., removing tripping hazards).
• Engage in weight-bearing exercises to strengthen bones.

When to Seek Professional Help

• Increased pain, swelling, or bruising that worsens over time.
• Numbness, tingling, or weakness in the hand or fingers.
• Signs of infection, such as redness, warmth, or pus at the injury site.
• Difficulty moving the arm or wrist despite immobilization.

Tips for Medical Coders

Document the encounter as a subsequent visit for a closed fracture with routine healing. Ensure clinical notes specify the fracture type (nondisplaced oblique), location (shaft of left ulna), and healing status (routine). Code S52.235D is appropriate when the fracture is closed, healing as expected, and this is a follow-up encounter.