S37.12 Contusion of ureter

Name of the Condition

• Contusion of ureter (ICD-10-CM Code: S37.12)

Summary

A contusion of the ureter refers to bruising or superficial injury to the tube that transports urine from the kidneys to the bladder. This condition involves localized tissue damage without complete disruption of the ureteral structure, though it may still affect urinary flow or cause temporary symptoms. Contusions typically result from trauma or iatrogenic causes and may resolve with conservative management.

Causes

Blunt trauma to the abdomen or pelvis, such as from motor vehicle accidents, falls, or direct impact to the flank. Surgical procedures involving the pelvic or abdominal organs, including urologic or gynecologic surgeries, can also cause ureteral contusions. Penetrating injuries, though less common, may lead to this condition.

Risk Factors

• Undergoing abdominal or pelvic surgery, particularly procedures with a high risk of ureteral manipulation.
• Participation in contact sports or activities with a risk of abdominal trauma.
• Pre-existing conditions that may increase tissue vulnerability, such as chronic inflammation or prior ureteral injury.
• Advanced age, which may reduce tissue resilience.

Symptoms

• Flank or abdominal pain, often localized to the affected side.
• Hematuria (blood in urine), which may be microscopic or visible.
• Mild tenderness or bruising in the abdominal or pelvic region.
• Temporary changes in urinary habits, such as frequency or urgency.

Diagnosis

Physical examination to assess tenderness, swelling, or external trauma. Imaging studies, including CT scans or intravenous pyelograms, to evaluate ureteral integrity and rule out more severe injuries. Urinalysis to detect blood or other abnormalities.

Treatment Options

Conservative management, such as pain relief and monitoring, is often sufficient. Stenting may be used to maintain ureteral patency if obstruction is suspected. Surgical intervention is rarely required unless complications arise.

Prognosis and Follow-Up

Most contusions resolve with time and conservative care. Follow-up imaging may be recommended to ensure healing and rule out delayed complications. Long-term prognosis is generally favorable with appropriate monitoring.

Complications

Temporary urinary obstruction or leakage. Persistent pain or hematuria. Rarely, progression to more severe injury if untreated.

Lifestyle & Prevention

Avoid high-risk activities that may cause abdominal trauma. Use protective gear during contact sports. Ensure thorough preoperative planning for surgical procedures involving the ureter.

When to Seek Professional Help

Seek care if symptoms worsen, such as increasing pain, severe hematuria, or signs of infection. Immediate evaluation is needed for persistent urinary obstruction or signs of shock.

Tips for Medical Coders

Document the mechanism of injury (e.g., trauma or iatrogenic) and any associated symptoms. Ensure specificity in clinical notes to support the diagnosis. Include details about imaging or diagnostic findings to confirm the contusion and rule out more severe injuries.