S52.336F Nondisplaced oblique fracture of shaft of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Name of the Condition

Nondisplaced oblique fracture of shaft of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
ICD-10 Code: S52.336F

Summary

A nondisplaced oblique fracture of the shaft of the unspecified radius is a break in the long, outer bone of the forearm (radius) between the elbow and wrist, where the fracture line runs at an angle across the bone and the bone fragments remain aligned. This code applies to a subsequent encounter for an open fracture classified as type IIIA, IIIB, or IIIC, with routine healing documented. Open fractures involve a breach of the skin, and the type III designation indicates significant soft tissue damage, contamination, or vascular injury. Routine healing suggests the fracture is progressing without complications, and treatment focuses on monitoring and managing the open wound.

Causes

This fracture typically results from direct trauma, such as falls onto an outstretched arm, direct blows to the forearm, or accidents involving twisting forces at the wrist or elbow. High-impact events like motor vehicle collisions or sports injuries can also cause the bone to break in an oblique pattern. The open nature of the fracture may occur when the broken bone pierces the skin or when external force disrupts the skin over the fracture site. The subsequent encounter phase indicates the patient is receiving follow-up care after initial treatment.

Risk Factors

• Participation in contact sports or activities with a high risk of falls
• Osteoporosis or weakened bone density
• Advanced age, which increases fracture susceptibility
• Previous forearm or wrist injuries
• Occupations or hobbies involving repetitive stress or heavy lifting
• Conditions that impair wound healing (e.g., diabetes, vascular disease)

Symptoms

• Persistent or resolving pain at the injury site
• Swelling, bruising, or deformity of the forearm
• Limited range of motion in the wrist or forearm
• Visible signs of prior open wound (e.g., scarring, drainage)
• Possible numbness or tingling if nerve involvement occurred initially

Diagnosis

Diagnosis is based on clinical evaluation and imaging. A physical exam assesses pain, swelling, and range of motion. X-rays confirm the fracture type, alignment, and healing progress. Documentation must specify the open fracture type (IIIA, IIIB, or IIIC) and routine healing to support this code. Additional imaging (e.g., CT scan) may be used if detailed visualization of the fracture or soft tissue is needed.

Treatment Options

Treatment focuses on monitoring healing and managing the open wound. Immobilization (e.g., cast or brace) may continue if stability is required. Wound care, including cleaning and dressing changes, is essential to prevent infection. Physical therapy may be initiated to restore function as healing progresses. Follow-up appointments track healing and address any complications.

Prognosis and Follow-Up

Prognosis is generally favorable with routine healing, though recovery time varies based on fracture severity and patient factors. Follow-up care ensures the fracture heals properly and the open wound resolves. Regular imaging and clinical assessments monitor progress. Most patients regain full function, but stiffness or weakness may persist temporarily.

Complications

• Infection of the open wound
• Delayed union or nonunion of the fracture
• Nerve or vascular damage (if initially present)
• Chronic pain or stiffness
• Limited range of motion

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports, work)
• Maintain bone health through adequate calcium and vitamin D intake
• Avoid falls by modifying the home environment (e.g., removing tripping hazards)
• Engage in strength and balance exercises to reduce fall risk
• Follow post-injury activity restrictions to support healing

When to Seek Professional Help

Seek care if you experience increasing pain, swelling, or drainage from the wound; signs of infection (e.g., redness, warmth, fever); or new numbness or weakness. Contact a healthcare provider if the fracture site feels unstable or if you have difficulty moving the arm.

Tips for Medical Coders

Use this code for a subsequent encounter of a nondisplaced oblique radius shaft fracture with an open type IIIA, IIIB, or IIIC classification and routine healing. Document the fracture type, healing status, and encounter phase (subsequent) to support accurate coding. Ensure the open fracture details and routine healing are clearly recorded in the medical record.