AHA Coding Clinic® for ICD-9 - 2011 Issue 4; VOLUMES 1 & 2 NEW/REVISED CODES
Shiga Toxin-Producing Escherichia Coli
Effective October 1, 2011, code 041.4, Escherichia coli [E. coli], has been expanded to identify Shiga toxin-producing E. coli. E. coli represent a large and diverse group of bacteria with most strains being harmless. Shiga toxin-producing E. coli (STEC) may also be called enterohemorrhagic E. coli (EHEC). It is a bacterium that can cause illness ranging from mild intestinal disease to severe kidney complications. Gastrointestinal infections due to STEC may lead to potentially fatal conditions such as hemolytic uremic syndrome. E. coli can also cause urinary tract infections, respiratory illness and other illnesses. Shiga toxin is also sometimes...
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Article Overview
This article reviews an ICD-9-CM coding update effective October 1, 2011, focused on Shiga toxin-producing Escherichia coli and related classification terms used for bacterial gastrointestinal infections. It is relevant to coding professionals, clinical documentation specialists, and others who need to understand how this organism was differentiated within the E. coli category and how the article frames reporting in a GI infection context.
Why This Topic Matters
Accurate identification of this organism affects diagnosis coding for infectious disease records and supports more specific classification of gastrointestinal infection cases. The article also helps readers understand the relationship between the broader E. coli category, STEC terminology, and related ICD-9-CM updates.
Article Sections
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Overview of Shiga toxin-producing Escherichia coli
Introduces the organism, its alternate names, and the clinical context in which it may be encountered. The section also summarizes broad transmission pathways and potential health impacts.
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ICD-9-CM classification update
Presents the updated ICD-9-CM structure for E. coli-related classification and the newly distinguished categories referenced in the article. The section places the update in the context of bacterial infection coding.
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Reporting a gastrointestinal infection due to Shiga toxin-producing E. coli O157
Addresses the article’s reporting example for a gastrointestinal infection attributed to this organism. The section discusses the scenario at a high level without reproducing detailed coding instructions.
What You Will Learn
- How Shiga toxin-producing Escherichia coli is described in the article’s coding context.
- What kinds of clinical and transmission topics are associated with this organism.
- How the article frames the ICD-9-CM update and related infection reporting context.
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Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation specialists
- Infectious disease staff
Codes Discussed
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