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ICD Hub / Certain infectious or parasitic diseases (A00–B99) / 1A03.Z - Intestinal infections due to Escherichia coli, unspecified
ICD-11

ICD-11 Codes
for 1A03.Z - Intestinal infections due to Escherichia coli, unspecified
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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Understanding Intestinal Infections Due to Escherichia coli, Unspecified

Escherichia coli (E. coli) is a bacterium commonly found in the intestines of healthy individuals and animals. While most strains are harmless and even beneficial, certain types can cause intestinal infections. The unspecified form, coded as ICD-11 code 1A03.Z, refers to intestinal infections caused by E. coli where the specific strain or type is not identified. These infections primarily affect the gastrointestinal system and can manifest with varying degrees of severity.

Recognizing the Signs of E. coli Intestinal Infection

Symptoms of unspecified intestinal infections due to Escherichia coli can vary but often include gastrointestinal distress. Common presentations may involve diarrhoea, which can be watery or, in some cases, bloody. Patients might also experience abdominal cramps, stomach pain, nausea, vomiting, and a low-grade fever. The onset and duration of symptoms can differ depending on the specific E. coli strain involved, though for unspecified cases, a general range of symptoms is observed.

Factors Contributing to E. coli Intestinal Infections

Intestinal infections due to Escherichia coli, unspecified (ICD-11 code 1A03.Z) typically arise from the ingestion of the bacteria. This can occur through consuming contaminated food, such as undercooked meat or unpasteurized dairy products, or drinking contaminated water. Poor hygiene practices, including inadequate handwashing after using the restroom or contact with animals, also play a significant role. Individuals with weakened immune systems, young children, and the elderly may be at a higher risk of developing more severe symptoms or complications.

Diagnosing Intestinal E. coli Infections

The diagnosis of intestinal infections due to Escherichia coli, unspecified (1A03.Z) typically involves a clinical evaluation of symptoms and laboratory testing. A stool sample may be collected and analysed to detect the presence of E. coli bacteria. In some instances, other tests such as blood or urine cultures might be performed to rule out systemic infections or complications. Healthcare providers consider the patient's history, including recent food consumption and travel, alongside diagnostic results.

Managing E. coli Intestinal Infections

Management for unspecified intestinal infections caused by Escherichia coli focuses on supportive care. Ensuring adequate hydration by drinking plenty of fluids is crucial, especially if diarrhoea is present. For certain strains, particularly Shiga toxin-producing E. coli (STEC), antibiotics and anti-diarrheal medications are generally avoided as they can increase the risk of complications like haemolytic uraemic syndrome (HUS). Treatment strategies are guided by the severity of symptoms and the potential for complications.

Coding and Documenting E. coli Intestinal Infections

The ICD-11 code for intestinal infections due to Escherichia coli, unspecified is 1A03.Z. This code is used when a diagnosis of E. coli intestinal infection is made, but the specific type or strain of the bacteria is not documented or identified. Accurate documentation by healthcare providers is essential for correct coding, ensuring appropriate billing and statistical reporting. This code falls under the broader category of bacterial intestinal infections.

Frequently asked questions

What is the ICD-11 classification meaning of code 1A03.Z?
1A03.Z represents intestinal infections caused by Escherichia coli where the specific type of infection or strain is not specified.
When should ICD-11 code 1A03.Z be used?
This code is used when a diagnosis of intestinal infection due to Escherichia coli is documented, but specific details to assign a more precise code (e.g., enteropathogenic, enterotoxigenic, enteroinvasive, enterohaemorrhagic) are not available.
How does 1A03.Z relate to other codes for Escherichia coli intestinal infections in ICD-11?
1A03.Z is the residual category for unspecified Escherichia coli intestinal infections. Other codes within the 1A03 block are used when the specific type of E. coli infection is identified.
What is the official ICD-11 description for code 1A03.Z?
Intestinal infections due to Escherichia coli, unspecified.
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