ICD-11 Codes
for 1A05 - Intestinal infections due to Yersinia enterocolitica

Teodor Jurukovski January 1, 1970

Fact checked by: Teodor Jurukovski

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Synonyms and Alternative Terms

Intestinal infections due to Yersinia enterocolitica is also commonly referred to as yersiniosis, intestinal yersiniosis, or enteritis due to Yersinia enterocolitica. This condition is a type of bacterial intestinal infection.

Causes and Risk Factors

The primary cause of intestinal infections due to Yersinia enterocolitica is the ingestion of the bacteria, most commonly through consuming raw or undercooked pork products. Other transmission routes include drinking contaminated milk or water, or direct contact with infected animals such as pigs, rodents, cows, sheep, and rabbits. Less frequently, dogs and cats can also spread the bacteria. Young children are considered more susceptible to developing yersiniosis.

Clinical Overview of the Condition

Yersiniosis is a bacterial infection caused by the gram-negative bacterium Yersinia enterocolitica. It is a zoonotic disease that primarily affects the intestinal tract, leading to symptoms such as fever, diarrhoea, and abdominal pain. In some instances, it can mimic appendicitis, particularly in younger individuals. While most cases resolve without specific medical intervention, severe infections or those leading to systemic complications may require antibiotic treatment.

How the Condition is Diagnosed

The definitive diagnosis for intestinal infections due to Yersinia enterocolitica is typically made through a stool culture that identifies the presence of the bacteria. A healthcare provider will also conduct a physical examination and review the patient's symptoms. Imaging studies, such as ultrasound or CT scans, may be employed to differentiate yersiniosis from conditions like appendicitis, especially when right-sided abdominal pain is a prominent symptom.

Common Symptoms and Presentation

Symptoms of intestinal infections due to Yersinia enterocolitica usually appear between four to seven days after exposure and can persist for up to three weeks. Common manifestations include abdominal pain, which can be severe and often localised to the right lower quadrant, mimicking appendicitis. Diarrhoea is another frequent symptom, which may be bloody and can last for several weeks. Fever and a sore throat (pharyngitis) can also occur. In young children, gastrointestinal issues are most prominent, while older children and adults may experience more pronounced abdominal pain.

Treatment and Management Considerations

For most individuals with uncomplicated intestinal infections due to Yersinia enterocolitica, treatment focuses on supportive care, including ensuring adequate hydration and nutritional support. Antimotility agents are generally not recommended as they can potentially worsen the infection. In cases of severe illness, such as those involving immunocompromised individuals, the elderly, or patients with sepsis, antibiotic therapy may be prescribed. Surgical intervention might be necessary for complications like abscesses, or if appendicitis cannot be ruled out.

Documentation and Coding Considerations

The official ICD-11 code for intestinal infections due to Yersinia enterocolitica is 1A05. This code is used for documenting cases of yersiniosis, a bacterial intestinal infection. When coding, it is important to use the precise ICD-11 terminology. Common clinical synonyms such as intestinal yersiniosis or enteritis due to Yersinia enterocolitica can be used in clinical documentation. This condition is reportable and billable under the ICD-11 classification system when diagnosed.