ICD-11 Codes
for 1A03 - Intestinal infections due to Escherichia coli

Teodor Jurukovski January 1, 1970

Fact checked by: Teodor Jurukovski

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Understanding Intestinal Infections Due to Escherichia coli (ICD-11 Code 1A03)

Intestinal infections due to *Escherichia coli*, classified under the ICD-11 code 1A03, represent a group of conditions affecting the gastrointestinal system. These infections are caused by specific strains of the gram-negative bacteria *Escherichia coli* (commonly known as *E. coli*).

What Causes Intestinal Infections Due to E. coli?

The primary cause of conditions coded as 1A03 in ICD-11 is infection with pathogenic strains of *Escherichia coli*. While many *E. coli* strains are harmless residents of the human gut, certain types produce toxins or possess mechanisms that lead to illness. These include:

• Enteropathogenic *E. coli*
• Enterotoxigenic *E. coli*
• Enteroinvasive *E. coli*
• Enterohaemorrhagic *E. coli* (e.g., Shiga toxin-producing *E. coli* or STEC)

Infections can occur through consuming contaminated food or water.

Recognizing the Symptoms of E. coli Intestinal Infections

Patients experiencing intestinal infections due to *E. coli* may present with a range of symptoms, typically including:

• Diarrhea, which can be watery or bloody
• Severe abdominal cramps or pain
• Nausea and vomiting
• Fever (less common)

The specific presentation can vary depending on the strain of *E. coli* involved.

When to Seek Medical Attention for E. coli Infections

It is advisable to seek medical advice if you experience severe symptoms such as bloody diarrhea, signs of dehydration (e.g., decreased urination, dizziness, dry mouth), or persistent vomiting. Prompt medical evaluation is crucial for accurate diagnosis and management. Healthcare professionals diagnose these conditions based on clinical signs and may order laboratory tests to identify the specific *E. coli* strain.

ICD-11 Coding for Intestinal E. coli Infections

The official ICD-11 code for Intestinal infections due to *Escherichia coli* is 1A03. This primary code covers infections caused by this bacterium. For more specific documentation, ICD-11 allows for sub-classification, such as 1A03.Y for intestinal infections due to other specified *Escherichia coli*, or 1A03.Z for cases where the specific type is not identified. Accurate ICD-11 coding is vital for medical records, statistical reporting, and billing purposes.

Managing Intestinal Infections Caused by E. coli

Treatment for intestinal infections due to *E. coli* primarily focuses on supportive care to manage symptoms and prevent complications. Key management strategies include:

• Maintaining adequate fluid intake to prevent dehydration.
• Resting the digestive system.

Medical professionals will assess the severity of the infection and the specific *E. coli* strain to determine the most appropriate course of action, which may include specific medical interventions in more severe cases.