S42.264K Nondisplaced fracture of lesser tuberosity of right humerus, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of lesser tuberosity of right humerus, subsequent encounter for fracture with nonunion (ICD Code: S42.264K)

Summary

This condition involves a nondisplaced fracture of the lesser tuberosity, a bony prominence on the front of the right humerus near the shoulder joint. The fracture has not healed properly, resulting in nonunion, where the bone fragments fail to fuse over time. The term "subsequent encounter" indicates this is a follow-up visit for the fracture, and "nonunion" signifies a failure of the normal healing process.

Causes

Nondisplaced fractures of the lesser tuberosity typically result from direct trauma, such as falls onto the shoulder, motor vehicle accidents, or high-impact sports injuries. Nonunion may occur due to inadequate immobilization, poor blood supply to the fracture site, infection, or underlying conditions that impair bone healing, such as diabetes or smoking.

Risk Factors

• Advanced age and osteoporosis, which reduce bone density.
• Participation in contact sports or activities with a high risk of falls.
• Previous fractures or bone disorders that weaken the skeletal structure.
• Factors that impair healing, such as smoking, diabetes, or nutritional deficiencies.

Symptoms

• Persistent pain in the shoulder or upper arm, often worsening with movement.
• Swelling, bruising, or tenderness at the fracture site.
• Limited range of motion or weakness in the arm.
• Possible clicking or grinding sensations during shoulder movement.

Diagnosis

Physical examination to assess pain, range of motion, and tenderness. Imaging tests, including X-rays, to confirm nonunion by showing a persistent fracture line without bridging bone. CT scans or MRIs may be used to evaluate bone healing and soft tissue involvement.

Treatment Options

Treatment may include immobilization with a sling or brace to stabilize the fracture. Surgical intervention, such as internal fixation or bone grafting, may be necessary to promote healing. Physical therapy is often recommended to restore strength and mobility once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of nonunion and response to treatment. Regular follow-up visits are essential to monitor healing and adjust treatment plans. Long-term outcomes may include persistent pain or reduced shoulder function if nonunion is not resolved.

Complications

• Chronic pain or disability due to nonunion.
• Increased risk of further injury to the shoulder.
• Potential need for additional surgeries if nonunion persists.
• Reduced quality of life due to limited arm function.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Quit smoking and limit alcohol, as these can impair healing.
• Use protective gear during sports or activities with fall risks.

When to Seek Professional Help

Seek medical attention if pain worsens, swelling increases, or movement becomes more limited. Contact a healthcare provider if signs of infection, such as redness, warmth, or fever, develop at the fracture site.

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture with nonunion. Include details on the fracture's status, treatment provided, and any imaging results confirming nonunion. Ensure the code S42.264K is used for nondisplaced fractures of the lesser tuberosity of the right humerus with nonunion during follow-up care.