A04.9
BillableBacterial intestinal infection, unspecified
Bacterial intestinal infection, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Bacterial enteritis NOS
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
- •bacterial foodborne intoxications, NECA05
- •tuberculous enteritisA18.32
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Related Codes(9)
A04.0Enteropathogenic Escherichia coli infection
A04.1Enterotoxigenic Escherichia coli infection
A04.2Enteroinvasive Escherichia coli infection
A04.3Enterohemorrhagic Escherichia coli infection
A04.4Other intestinal Escherichia coli infections
A04.5Campylobacter enteritis
A04.6Enteritis due to Yersinia enterocolitica
A04.7Enterocolitis due to Clostridium difficile
A04.8Other specified bacterial intestinal infections
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(50)
SNOMED CT
- Emphysematous gastritis7399006
- Gastric emphysema7399006
- Suppurative colitis18229003
- Dysenteric diarrhea46799006
- Dysenteric diarrhoea46799006
- Dysentery46799006
- Purulent enteritis47941007
- Bacterial overgrowth syndrome66379009
- Bacterial enteritis75375008
- Bacterial enteritis of intestine75375008
- Inflammation of intestine caused by bacteria75375008
- Septic enteritis75375008
- Bacterial gastroenteritis274080003
- Bacterial intestinal infectious disease312108008
- Bacterial dysentery312109000
- Bacterial gastrointestinal infectious disease312121001
- Small bowel bacterial overgrowth syndrome446081009
- Bacterial colitis721681005
- Colitis caused by bacterium721681005
UMLS
- Bacterial enteritisC0152516
- Bacterial enteritis NOSC0152516
- Bacterial enteritis of intestineC0152516
- Bacterial enteritis, unspecifiedC0152516
- Inflammation of intestine caused by bacteriaC0152516
- Inflammation of intestine caused by bacteria (disorder)C0152516
- Septic enteritisC0152516
- bacterial enteritisC0152516
- Bacterial intestinal infection, unspecifiedC0348095
Clinical Terms
- Bacterial gastrointestinal infectious disease
- Bacterial enteritis
- Bacterial overgrowth syndrome
- Purulent enteritis
- Bacterial enteritis of intestine
- Emphysematous gastritis
- Dysenteric diarrhea
- Small bowel bacterial overgrowth syndrome
- Bacterial colitis
- Colitis caused by bacterium
- Bacterial enteritis, unspecified
- Bacterial intestinal infectious disease
- Inflammation of intestine caused by bacteria
- Bacterial dysentery
- Bacterial enteritis NOS
- Inflammation of intestine caused by bacteria (disorder)
- Suppurative colitis
- Septic enteritis
- Dysentery
- Dysenteric diarrhoea
- Gastric emphysema
- Bacterial gastroenteritis
Frequently Asked Questions
What is the ICD-10 code for bacterial intestinal infection, unspecified?
The ICD-10-CM code for bacterial intestinal infection, unspecified is A04.9. The full clinical description is "Bacterial intestinal infection, unspecified". A04.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code A04.9 mean?
ICD-10-CM code A04.9 represents “Bacterial intestinal infection, unspecified”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.
Is A04.9 a billable code?
Yes, A04.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A04.9 in?
A04.9 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A04.9?
A04.9 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; bacterial foodborne intoxications, NEC (A05.-); tuberculous enteritis (A18.32).
Are additional codes required with A04.9?
Yes, when using A04.9, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A04.9 map to?
A04.9 maps to 12 SNOMED CT concepts: 721681005, 312109000, 75375008, 274080003, 312121001, and 7 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A04.9?
A04.9 is linked to 2 UMLS Concept Unique Identifiers: C0152516, C0348095. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A04.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like bacterial intestinal infection, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of A04.9?
A04.9 maps to the ICD-11 code: 1A0Z (Bacterial intestinal infections, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.