ICD-10-CM · Billable Code
A04.9 — Bacterial intestinal infection, unspecified
Chapter A00-B99: Certain infectious and parasitic diseases
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A04.0Enteropathogenic Escherichia coli infectionA04.1Enterotoxigenic Escherichia coli infectionA04.2Enteroinvasive Escherichia coli infectionA04.3Enterohemorrhagic Escherichia coli infectionA04.4Other intestinal Escherichia coli infectionsA04.5Campylobacter enteritisA04.6Enteritis due to Yersinia enterocoliticaA04.7Enterocolitis due to Clostridium difficileA04.8Other specified bacterial intestinal infections
Common questions about A04.9 (Bacterial intestinal infection, unspecified)
What does ICD-10 code A04.9 mean?
A04.9 is the ICD-10-CM 2025 code for Bacterial intestinal infection, unspecified. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is A04.9 a billable diagnosis code?
Yes, A04.9 is a billable / specific ICD-10-CM code, meaning it can be used by clinicians and hospitals as a primary or secondary diagnosis on claims and electronic health records.
Which ICD-10 chapter does A04.9 belong to?
A04.9 belongs to the chapter "Certain infectious and parasitic diseases" (codes A00-B99). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Bacterial intestinal infection, unspecified?
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Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗